The next number is 39.
The position to value rule is:
Un = (7n4 - 89n3 + 392n2 - 694n + 438)/6 for n = 1, 2, 3, ...
Chat with our AI personalities
The next number in the sequence is 7. The pattern is descending by 6, then ascending by 3, and then descending by 6 again.
The next four number in the sequence are... 4,5,5 & 6
Consecutive terms in the sequence are being divided by -2. Therefore, -1 / -2 = 1/2 or 0.5.
64
6
The next number is 0. The position to value rule is Un = (-n4 + 9n3 - 17n2 - 15n + 54)/6 for n = 1, 2, 3, ...