A261384 - cp's OEIS frontend

A261384 Expansion of Product_{k>=1} (1+x^k)^(2k-1) / (1-x^k)^(2k).

n	a(n)
0	1
1	3
2	12
3	39
4	117
5	331
6	893
7	2307
8	5766
9	13986
10	33046
11	76302
12	172567
13	383013
14	835731
15	1795236
16	3801105
17	7941439
18	16386777
19	33423342
20	67435311
21	134675784
22	266385932
23	522135379
24	1014643823
25	1955656848
26	3740191268
27	7100290646
28	13383997996
29	25058666367

[1, 3, 12, 39, 117, 331, 893, 2307, 5766, 13986, 33046, 76302, 172567, 383013, 835731, 1795236, 3801105, 7941439, 16386777, 33423342, 67435311, 134675784, 266385932, 522135379, 1014643823, 1955656848, 3740191268, 7100290646, 13383997996, 25058666367]

cp's OEIS Frontend

A261384 Expansion of Product_{k>=1} (1+x^k)^(2k-1) / (1-x^k)^(2k).

Table of values

List of values

cp's OEIS Frontend

A261384 Expansion of Product_{k>=1} (1+x^k)^(2*k-1) / (1-x^k)^(2*k).

Table of values

List of values

A261384 Expansion of Product_{k>=1} (1+x^k)^(2k-1) / (1-x^k)^(2k).