A303392 - cp's OEIS frontend

A303392 Expansion of Product_{k>=1} ((1 + 4x^k) / (1 - 4x^k))^(1/2).

n	a(n)
0	1
1	4
2	12
3	52
4	156
5	612
6	2028
7	7892
8	27324
9	107396
10	384844
11	1520436
12	5566876
13	22069796
14	81990252
15	325707348
16	1222582268
17	4862950020
18	18395472460
19	73233825524
20	278700724764
21	1110232691108
22	4245596648876
23	16920914168148
24	64963831455996
25	259012955299396

[1, 4, 12, 52, 156, 612, 2028, 7892, 27324, 107396, 384844, 1520436, 5566876, 22069796, 81990252, 325707348, 1222582268, 4862950020, 18395472460, 73233825524, 278700724764, 1110232691108, 4245596648876, 16920914168148, 64963831455996, 259012955299396]

cp's OEIS Frontend

A303392 Expansion of Product_{k>=1} ((1 + 4x^k) / (1 - 4x^k))^(1/2).

Table of values

List of values

cp's OEIS Frontend

A303392 Expansion of Product_{k>=1} ((1 + 4*x^k) / (1 - 4*x^k))^(1/2).

Table of values

List of values

A303392 Expansion of Product_{k>=1} ((1 + 4x^k) / (1 - 4x^k))^(1/2).