A376812 - cp's OEIS frontend

A376812 G.f.: Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^2.

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	3
6	5
7	5
8	5
9	7
10	8
11	10
12	13
13	14
14	16
15	19
16	21
17	25
18	29
19	33
20	40
21	45
22	50
23	57
24	64
25	72
26	81
27	93
28	104
29	117
30	134
31	148
32	165
33	185
34	204
35	227
36	253
37	280
38	310
39	345
40	381
41	422
42	469
43	514
44	567
45	625
46	685
47	753
48	825
49	903
50	990
51	1086
52	1186
53	1297
54	1419
55	1548
56	1692
57	1845
58	2007

[1, 1, 2, 2, 2, 3, 5, 5, 5, 7, 8, 10, 13, 14, 16, 19, 21, 25, 29, 33, 40, 45, 50, 57, 64, 72, 81, 93, 104, 117, 134, 148, 165, 185, 204, 227, 253, 280, 310, 345, 381, 422, 469, 514, 567, 625, 685, 753, 825, 903, 990, 1086, 1186, 1297, 1419, 1548, 1692, 1845, 2007]

cp's OEIS Frontend

A376812 G.f.: Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^2.

Table of values

List of values

cp's OEIS Frontend

A376812 G.f.: Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} (1 + x^j)^2.

Table of values

List of values

A376812 G.f.: Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^2.