A256105 - cp's OEIS frontend

A256105 a(n) = [x^n] 2^(2*n) / Product_{k>=1} (1-x^k)^(2^(-k)).

n	a(n)
0	1
1	2
2	10
3	36
4	166
5	556
6	2724
7	9000
8	41542
9	153164
10	657644
11	2325816
12	11020508
13	38006264
14	164662664
15	634362320
16	2695771462
17	9775537676
18	43527018396
19	156855914904
20	687387270260
21	2605392165928
22	10799896586616
23	40214700074800
24	178809945153820
25	657023566793400

[1, 2, 10, 36, 166, 556, 2724, 9000, 41542, 153164, 657644, 2325816, 11020508, 38006264, 164662664, 634362320, 2695771462, 9775537676, 43527018396, 156855914904, 687387270260, 2605392165928, 10799896586616, 40214700074800, 178809945153820, 657023566793400]

cp's OEIS Frontend

A256105 a(n) = [x^n] 2^(2*n) / Product_{k>=1} (1-x^k)^(2^(-k)).

Table of values

List of values