A285289 - cp's OEIS frontend

A285289 Expansion of Product_{k>=1} ((1 + x^k) / (1 + x^(2*k)))^k.

n	a(n)
0	1
1	1
2	1
3	4
4	5
5	10
6	16
7	26
8	44
9	68
10	110
11	167
12	265
13	399
14	609
15	919
16	1371
17	2040
18	3005
19	4420
20	6436
21	9364
22	13501
23	19433
24	27806
25	39639
26	56265
27	79572
28	112126
29	157390
30	220283
31	307163
32	427145
33	592029
34	818359
35	1127878
36	1550483
37	2125656
38	2907013
39	3965853
40	5397497

[1, 1, 1, 4, 5, 10, 16, 26, 44, 68, 110, 167, 265, 399, 609, 919, 1371, 2040, 3005, 4420, 6436, 9364, 13501, 19433, 27806, 39639, 56265, 79572, 112126, 157390, 220283, 307163, 427145, 592029, 818359, 1127878, 1550483, 2125656, 2907013, 3965853, 5397497]

cp's OEIS Frontend

A285289 Expansion of Product_{k>=1} ((1 + x^k) / (1 + x^(2*k)))^k.

Table of values

List of values