A306733 - cp's OEIS frontend

A306733 Expansion of Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^j.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	3
7	2
8	3
9	5
10	5
11	8
12	11
13	11
14	17
15	19
16	22
17	33
18	38
19	50
20	69
21	82
22	103
23	133
24	165
25	201
26	249
27	319
28	389
29	492
30	621
31	765
32	974
33	1206
34	1500
35	1857
36	2302
37	2843
38	3494
39	4311
40	5275
41	6533
42	8027
43	9840
44	12138
45	14903
46	18340
47	22541
48	27619
49	33811
50	41429
51	50682
52	61809
53	75422
54	91807

[1, 1, 1, 1, 1, 2, 3, 2, 3, 5, 5, 8, 11, 11, 17, 19, 22, 33, 38, 50, 69, 82, 103, 133, 165, 201, 249, 319, 389, 492, 621, 765, 974, 1206, 1500, 1857, 2302, 2843, 3494, 4311, 5275, 6533, 8027, 9840, 12138, 14903, 18340, 22541, 27619, 33811, 41429, 50682, 61809, 75422, 91807]

cp's OEIS Frontend

A306733 Expansion of Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^j.

Table of values

List of values

cp's OEIS Frontend

A306733 Expansion of Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} (1 + x^j)^j.

Table of values

List of values

A306733 Expansion of Sum_{k>=0} x^(k(k+1)/2) Product_{j=1..k} (1 + x^j)^j.