A204856 - cp's OEIS frontend

A204856 G.f.: Sum_{n>=0} x^(n(n+1)/2) / Product_{k=1..n} (1 - kx^k).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	4
6	5
7	9
8	11
9	22
10	27
11	49
12	68
13	115
14	157
15	279
16	372
17	628
18	914
19	1457
20	2070
21	3457
22	4840
23	7753
24	11442
25	17768
26	25824
27	41315
28	59008
29	92140
30	137212
31	208524
32	305472
33	477659
34	691381
35	1058019
36	1575694
37	2370618
38	3491693
39	5359888
40	7796346
41	11799263
42	17583757

[1, 1, 1, 2, 2, 4, 5, 9, 11, 22, 27, 49, 68, 115, 157, 279, 372, 628, 914, 1457, 2070, 3457, 4840, 7753, 11442, 17768, 25824, 41315, 59008, 92140, 137212, 208524, 305472, 477659, 691381, 1058019, 1575694, 2370618, 3491693, 5359888, 7796346, 11799263, 17583757]

cp's OEIS Frontend

A204856 G.f.: Sum_{n>=0} x^(n(n+1)/2) / Product_{k=1..n} (1 - kx^k).

Table of values

List of values

cp's OEIS Frontend

A204856 G.f.: Sum_{n>=0} x^(n*(n+1)/2) / Product_{k=1..n} (1 - k*x^k).

Table of values

List of values

A204856 G.f.: Sum_{n>=0} x^(n(n+1)/2) / Product_{k=1..n} (1 - kx^k).