A258788 - cp's OEIS frontend

A258788 a(n) = [x^n] Product_{k=1..n} 1/(x^k*(1-x^k)).

n	a(n)
0	1
1	1
2	3
3	12
4	47
5	192
6	811
7	3539
8	15765
9	71362
10	327748
11	1524081
12	7161629
13	33958506
14	162312471
15	781305581
16	3784573140
17	18435578714
18	90261022638
19	443956543235
20	2192796266004
21	10872208762458
22	54095648185434
23	270029668955605
24	1351943521270155
25	6787479872751732

[1, 1, 3, 12, 47, 192, 811, 3539, 15765, 71362, 327748, 1524081, 7161629, 33958506, 162312471, 781305581, 3784573140, 18435578714, 90261022638, 443956543235, 2192796266004, 10872208762458, 54095648185434, 270029668955605, 1351943521270155, 6787479872751732]

cp's OEIS Frontend

A258788 a(n) = [x^n] Product_{k=1..n} 1/(x^k*(1-x^k)).

Table of values

List of values