19
25 is the next number that appears in that sequence.
If the last number is 1/3 (it should be), the next number is 5 and 1/3
This is a sequence of perfect squares. 12=1, 22=4, 32=9, 42=16, 52=25. The next number is 62=36.
The next number in the sequence is 15. The pattern is as follows: from 1 to 6 is +5, from 6 to 9 +4, from 9 to 12 +3, from 12 to 14 +2, and then from 14 to the answer (15) +1.
Sequence is +4 - 3 + 5 - 2 + 6 - 1 (+1 - 1)2 6 3 8 6 12 next number 11
The sequence is generated using cubes, or n^3. The next number in the sequence will be 4^3, or 256.
There does not appear to be a missing number. The sequence is n2 + 1. 12 + 1 = 2 : 22 + 1 = 5 : 52 + 1 = 26 : 262 + 1 = 677. The next number in the sequence is 6772 + 1 = 458330.
2264. The number is next in the sequence defined by t(n) = (244*n3 - 1449*n2 + 2819*n - 1578)/3 for n = 1, 2, 3, ...
1
The pattern appears to be: subtract 6, add 17, subtract 14, add 9, subtract 7. Following this pattern, the next number should be obtained by adding 3 to the last number in the sequence, which is 6. Therefore, the next number in the sequence is 9.
12
The next number is 4, followed by -2