A005605 - cp's OEIS frontend

A005605 a(n) = a(n-1) + (-1)^(n-1) * a(n-2)^2 for n >= 2 with a(0) = 0 and a(1) = 1.

n	a(n)
0	0
1	1
2	1
3	2
4	1
5	5
6	4
7	29
8	13
9	854
10	685
11	730001
12	260776
13	532901720777
14	464897598601
15	283984244007552571082330
16	67854466822576053925129
17	80647050844541158378200602801460469923692154029

[0, 1, 1, 2, 1, 5, 4, 29, 13, 854, 685, 730001, 260776, 532901720777, 464897598601, 283984244007552571082330, 67854466822576053925129, 80647050844541158378200602801460469923692154029]

cp's OEIS Frontend

A005605 a(n) = a(n-1) + (-1)^(n-1) * a(n-2)^2 for n >= 2 with a(0) = 0 and a(1) = 1.

Table of values

List of values