A370749 - cp's OEIS frontend

A370749 a(n) = 2^n * [x^n] Product_{k>=1} ((1 + 2x^k)/(1 - 2x^k))^(1/4).

n	a(n)
0	1
1	2
2	6
3	28
4	70
5	300
6	892
7	3544
8	9990
9	43340
10	127988
11	546120
12	1651356
13	7227896
14	22414008
15	99344944
16	312879302
17	1396285452
18	4486205892
19	20057934312
20	65293087284
21	292353604136
22	963327294536
23	4308913730256
24	14340603113372
25	64059675491512
26	215075154021384
27	958968160741328

[1, 2, 6, 28, 70, 300, 892, 3544, 9990, 43340, 127988, 546120, 1651356, 7227896, 22414008, 99344944, 312879302, 1396285452, 4486205892, 20057934312, 65293087284, 292353604136, 963327294536, 4308913730256, 14340603113372, 64059675491512, 215075154021384, 958968160741328]

cp's OEIS Frontend

A370749 a(n) = 2^n * [x^n] Product_{k>=1} ((1 + 2x^k)/(1 - 2x^k))^(1/4).

Table of values

List of values

cp's OEIS Frontend

A370749 a(n) = 2^n * [x^n] Product_{k>=1} ((1 + 2*x^k)/(1 - 2*x^k))^(1/4).

Table of values

List of values

A370749 a(n) = 2^n * [x^n] Product_{k>=1} ((1 + 2x^k)/(1 - 2x^k))^(1/4).