A258341 - cp's OEIS frontend

A258341 Expansion of Product_{k>=1} (1+x^k)^(k*(k+1)).

n	a(n)
0	1
1	2
2	7
3	24
4	65
5	184
6	487
7	1254
8	3145
9	7706
10	18480
11	43490
12	100692
13	229472
14	515802
15	1144416
16	2508948
17	5439642
18	11671859
19	24801738
20	52221911
21	109013538
22	225718717
23	463769652
24	945915199
25	1915895576
26	3854803572
27	7706786958
28	15314564282
29	30255672820
30	59440488874

[1, 2, 7, 24, 65, 184, 487, 1254, 3145, 7706, 18480, 43490, 100692, 229472, 515802, 1144416, 2508948, 5439642, 11671859, 24801738, 52221911, 109013538, 225718717, 463769652, 945915199, 1915895576, 3854803572, 7706786958, 15314564282, 30255672820, 59440488874]

cp's OEIS Frontend

A258341 Expansion of Product_{k>=1} (1+x^k)^(k*(k+1)).

Table of values

List of values