Normal:
Same numbers add up, i.e. 1 + 1 = 2, 2 + 2 = 4, 4 + 4 = 8, 8 + 8 =16, ...
Fibonacci:
Consecutive Fibonacci numbers add up, i.e. 1 + 1 =2, 1 + 2 = 3, 2 + 3 = 5, 3 + 5 = 8, ...
Tribonacci:
The tribonacci sequence is defined by the recusion a
n =
a
n-1 + a
n-3, and therefore goes 1, 1, 1, 2, 3, 4,
6, 9, 13, 19, 28, 41, 60, 88, 129, …
You can add up to numbers if they are two places apart in this sequence ((1,3) or the larger number twice to 2.5 times as big as the smaller one).
Explicit formula
here.
Custom Sequence:Change the value of the array
custom_sequence in the devtools console (
Ctrl +
Shift +
J)