1,1,3,9,23, Difference is 0, 2, 6, 14, next is 30 (here addition comes as 2, 4, 8, 16..) so answer is 53
Differences of elements are the sum of two series 2, 4, 8, 16, 32, 64, 1, 3, 5, 7, 9, 11
2-1, 4-3, 8-5, 16-7, 32-9, 64-11
1, 1, 3, 9, 23, 53
What is the next number in the sequence - 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, 103, 109, 129, 130, ?