A265955 - cp's OEIS frontend

A265955 Expansion of Product_{k>=1} (1 + 2kx^k)/(1 - 2kx^k).

n	a(n)
0	1
1	4
2	16
3	60
4	192
5	596
6	1776
7	5020
8	13760
9	36916
10	96336
11	246316
12	619392
13	1530548
14	3729392
15	8976364
16	21337920
17	50195268
18	116977232
19	270114764
20	618712640
21	1406843940
22	3176387120
23	7126185948
24	15894370816
25	35253947940
26	77796242768
27	170868178332
28	373606888128

[1, 4, 16, 60, 192, 596, 1776, 5020, 13760, 36916, 96336, 246316, 619392, 1530548, 3729392, 8976364, 21337920, 50195268, 116977232, 270114764, 618712640, 1406843940, 3176387120, 7126185948, 15894370816, 35253947940, 77796242768, 170868178332, 373606888128]

cp's OEIS Frontend

A265955 Expansion of Product_{k>=1} (1 + 2kx^k)/(1 - 2kx^k).

Table of values

List of values

cp's OEIS Frontend

A265955 Expansion of Product_{k>=1} (1 + 2*k*x^k)/(1 - 2*k*x^k).

Table of values

List of values

A265955 Expansion of Product_{k>=1} (1 + 2kx^k)/(1 - 2kx^k).