With a suitable choice of the generating rule, any number of your choice can be next.
A simple polynomial, though is
Un = (n3 - 8n2 + 11n + 36)/2 for n = 1, 2, 3, etc which gives the next number in the sequence as another 8.
49
10
485
The next number is 485.
The next number is 17 because each number is increasing by increments of 3
17?
It is 5n+2 and so the next number is 22
The next number in the sequence is 27.
44
It is 129.
Think it's 30...then 20
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.
333
55
49
10
485