what the next number in the sequence?  1,4,13,40,121,364?
342433
1093 then 3280\n\nThis series is formed by adding 3 then 3x3 then 3x3x3 then 3x3x3x3 and so on
853291
4 is the answer. Here's how:\n4 appears after a break of two numbers, so the number that follows 40 must be 4
605278
72201,02,03,04,05,06,07,09,10,11,12,14,15,16,17,19,21,22,23,25,27,31,60,95\n\n72213,14,15,16,17,18,19,20,24,90,98,99
715233
If it is an arithmetic sequence, then the number between should be exactly half way.\n\n214 and 225 are 11 apart, so you want to pick the number that is 5½ higher or lower (namely 219½).  The pattern should follow for all numbers earlier or later.\n\nSo the answer is:\n...208½, 214, 219½, 225, 230½...
75832
#1, #2, #3, #4.......#18, #19, #20.\n\nVoila!\n\n:o)
1157976
0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007, 0008, 0009, 0010, 0011... etc, etc  untill u get to 9998, 9999\n\ntry it out, might take a long time but one combination will work :))
653946
1 4\n2 15\n4 2\n5 100\n6 3\n7 15\n8 10\n9 10\n10 33\n11 -45\n12 2\n13 500\n14 5\n15 200
1145815
6\n\nYou are putting the single digit numbers in alphebetical order:\neight, five, four, nine, one, seven, six, three, two, zero
466757
1 1 2 3 5\nif last=1(the first number) \n   next=1(the second number)\n   temp= last+next=1+1=2(thethird number)\nthen\n    next=temp=2\n    last=next=1\n    temp=last+next=1+2=3(the fourth number)\nlike this way you can get all it's numbers
1158100
adding the number next in sequence. first added 1, then 2, then 3.....
42951
The next line is 312211. First line : 1\nSecond line describes the first line : One-one (11)\nThird line describes the second line : Two-ones(21)'\nFourth line describes the third line : One-two, One-one (1211).\n\nEtc.\n\nSo, the sixth line would be 3 one's, two two's, and one one = 312211
971462
48=2(20+w)\n24=20+w\nw=4
96075
you are talking about "Pascalles (not sure about spelling) Triangle." It goes 1,11,121,1331 and so on.
869678
1 and 1\n9 and 3\n25 and 5\n49 and 7\n81 and 9\n121 and 11\n...
1080683
1113213211\n\nAfter starting the sequence with 1, each term in the sequence consists of groups of two numbers based on the previous term - the first being the quantity and the second specifying which digit.
520658
#24,#99,#16,or #20\nWho knows?
532000
How about 9! 51, 52, 55, 56, 57, 58, 59, 60, 61