A284870 - cp's OEIS frontend

A284870 Expansion of Sum_{i>=1} ix^i/(1 - x) Product_{j=1..i} 1/(1 - x^j).

n	a(n)
0	0
1	1
2	4
3	10
4	22
5	42
6	77
7	131
8	217
9	345
10	537
11	812
12	1211
13	1767
14	2547
15	3615
16	5078
17	7043
18	9687
19	13185
20	17815
21	23867
22	31766
23	41972
24	55146
25	71997
26	93519
27	120813
28	155358
29	198811
30	253374
31	321509
32	406436
33	511802
34	642264
35	803140
36	1001154
37	1243966
38	1541167
39	1903754
40	2345300
41	2881404
42	3531195
43	4316632
44	5264444
45	6405389

[0, 1, 4, 10, 22, 42, 77, 131, 217, 345, 537, 812, 1211, 1767, 2547, 3615, 5078, 7043, 9687, 13185, 17815, 23867, 31766, 41972, 55146, 71997, 93519, 120813, 155358, 198811, 253374, 321509, 406436, 511802, 642264, 803140, 1001154, 1243966, 1541167, 1903754, 2345300, 2881404, 3531195, 4316632, 5264444, 6405389]

cp's OEIS Frontend

A284870 Expansion of Sum_{i>=1} ix^i/(1 - x) Product_{j=1..i} 1/(1 - x^j).

Table of values

List of values

cp's OEIS Frontend

A284870 Expansion of Sum_{i>=1} i*x^i/(1 - x) * Product_{j=1..i} 1/(1 - x^j).

Table of values

List of values

A284870 Expansion of Sum_{i>=1} ix^i/(1 - x) Product_{j=1..i} 1/(1 - x^j).