please help me with solving this sequence i am solving a riddle and i cant go on without solving this?
923676
That last number should be 21.\n\nThat sequence is called the Fibonacci sequence.  It's the most famous sequence probably ever.\n\nThe 22nd is 17711.  You can look it up in table...or there's actually a way to compute it without having to do all the ones up to 22.\n\nThe formula for the nth Fibonacci number is:\n\nF(n) = 1/sqrt(5) [((1+sqrt(5))/2)^n + ((1-sqrt(5))/2)^n]\n\nKind of messy, but easier than writing them all out up to 22.
108578
the first term is A11=8/3^9\nAn = A1*q^(n-1)\nin our sequence A1=24 and q=3\ntherefore An=24*(1/3)^(n-1)\nlet's say 0.001 = 24*(1/3)^(n-1)\n0.001/24 = (1/3)^(n-1)\n1/24000 = ((1/3)^n)/(1/3)        /:1/3\n1/72000 = (1/3)^n\nn = (log(1/72000))/(log(1/3))\nn =  10.18\nwe want An to be less then 0.001 so we take a greater integer n, so n = 11 and A11 = 24*(1/3)^10 = 8/3^9
399866
There is an easy way to solve it. \n\nThese numbers are known as "pyramidal numbers" as each number in the sequence is equal to the number of blocks in an equilateral pyramid. As a side note, each sum in brackets is known as a "triangular number", as it is equal to the number of blocks in an equilateral triangle (note - a pyramid is a stack of triangles).\n\nMy memory is a little fuzzy on these things, but I believe that the closed-form equation is this:\n\nP(n) = n * (n + 1) * (n + 2) / 6
947933
The answer is 4.\n11 is eleven, which has 6 letters, so the next number is 6.\n6 is six, which has 3 letters, so the next number is 3.\n3 is three, which has 5 letters, so the next number is 5.\n5 is five, which has 4 letters, so the next number is 4.\n4 is four, which has 4 letters, so the next number is 4. It's all 4's from there!\n\nBy the way, 4 is the only number that has the same number of letters as its value, and if you start this sequence at any whole number, you will end up at four! Just a tidbit I knew! ^_^
1008114
This series is n(n+1)\n\n2,6,12,20,30,42,56,72,90,. . .
836446
Remember the order of operations "Please Excuse My Dear Aunt Sally"?\nParentheses\nExponents\nMultiply\nDivide\nAdd \nSubtract\n\nif n = 2 the plug in the variable  (4 * 2)^2\n\nwork the problem inside the parentheses and square the answer
400630
Answer : 64\n\nExplanation : \n2+3=5\n5+5=10\n10+7=17\n17+9=26\n26+11=37\n37+13=50\n50+15=65\n\nSo the next number in the line should be 65, not 64.
966925
There are 3 solutions for ABCDEFGHJ -\n\n2 6 7 8 3 5 1 4 9\n2 6 7 9 5 3 1 4 8\n6 7 8 4 1 3 2 5 9
986918
What riddle can i solve, but you cant? =P
856921
There are precisely three answers:\nABCDEFGHJ\n267835149\n267953148\n678413259\n\n(slightly offtopic, how can you spend 30 minutes on a question that was asked 8 minutes before you answered ;) Just kidding.)\n\nTry each one and check that it works :) Unless you didn't mean  F(G*H) as F*(G*H), and meant the digit F followed by the answer G*H.. in which case I'll try solving it again. If you did mean it like that, there is indeed a unique answer:\n\n589736142\n\nAhha, third question change. Now it becomes 256973148.
836747
2,3,1 (nothing goes there) ,6\n\nHope it helps :]
1052771
Uh, the riddle is suppose to be "what happens once every minute, twice every moment, but never in a thousand years?"\n\nAnd the answer is "M"
354066
you need to give more information, solve for what? this isn't an equation, there is no equals sign so nothing to solve. Its just a statement
129538
The next number is 30651.\nIt has a recursion, a_n=a_(n-1)^2+2*a_(n-2).
1090404
look at what is added (in parentheses)\n\n2 (+1) 3 (+2) 5 (+0) 5 (+3) 8 (-1) 7 (+4) 11\n\nStarting with the first and taking every other number you have +1 +0 -1.  The other values are +2 +3 +4.  So you have two patterns interwoven.  Following those patterns will yield:\n\n2, 3, 5, 5, 8, 7, 11, 9, 14, 11, 17, 13, 20
1072717
The riddle is to turn the following into a correct statement with one extra line:\n5+5+5+5=555\n\nYou put an extra line on the first plus sign to make it look like a 4.  The answer is therefore:\n545+5+5=555
1122785
The numbers give the next in the sequence, for example 3692 is 369*2 and that is 738 and so on.\n\n369 x 2 = 738 || 73 x 8 = 584 || 58 x 4 = 232 || 23 x 2 = 46\n\nYour final answer is 46.