A028377 - cp's OEIS frontend

A028377 Expansion of Product_{m>0} (1+q^m)^(m(m+1)/2).

n	a(n)
0	1
1	1
2	3
3	9
4	19
5	46
6	100
7	218
8	460
9	965
10	1975
11	3993
12	7975
13	15712
14	30650
15	59150
16	113093
17	214300
18	402812
19	751165
20	1390714
21	2557004
22	4670770
23	8479232
24	15302657
25	27462424
26	49021252
27	87057783
28	153850769
29	270614429
30	473850031
31	826125184
32	1434286323
33	2480145226

[1, 1, 3, 9, 19, 46, 100, 218, 460, 965, 1975, 3993, 7975, 15712, 30650, 59150, 113093, 214300, 402812, 751165, 1390714, 2557004, 4670770, 8479232, 15302657, 27462424, 49021252, 87057783, 153850769, 270614429, 473850031, 826125184, 1434286323, 2480145226]

cp's OEIS Frontend

A028377 Expansion of Product_{m>0} (1+q^m)^(m(m+1)/2).

Table of values

List of values