A318155 - cp's OEIS frontend

A318155 Expansion of (1/(1 - x)) * Sum_{k>=0} x^(k(2k+1)) / Product_{j=1..2*k} (1 - x^j).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	5
6	7
7	10
8	13
9	17
10	22
11	28
12	35
13	44
14	55
15	68
16	84
17	103
18	126
19	153
20	185
21	223
22	268
23	320
24	381
25	452
26	535
27	631
28	742
29	870
30	1018
31	1188
32	1383
33	1607
34	1863
35	2155
36	2489
37	2869
38	3301
39	3792
40	4348
41	4978
42	5691
43	6496
44	7404
45	8428
46	9580
47	10875
48	12330
49	13962
50	15791
51	17840
52	20131
53	22691

[1, 1, 1, 2, 3, 5, 7, 10, 13, 17, 22, 28, 35, 44, 55, 68, 84, 103, 126, 153, 185, 223, 268, 320, 381, 452, 535, 631, 742, 870, 1018, 1188, 1383, 1607, 1863, 2155, 2489, 2869, 3301, 3792, 4348, 4978, 5691, 6496, 7404, 8428, 9580, 10875, 12330, 13962, 15791, 17840, 20131, 22691]

cp's OEIS Frontend

A318155 Expansion of (1/(1 - x)) * Sum_{k>=0} x^(k(2k+1)) / Product_{j=1..2*k} (1 - x^j).

Table of values

List of values

cp's OEIS Frontend

A318155 Expansion of (1/(1 - x)) * Sum_{k>=0} x^(k*(2*k+1)) / Product_{j=1..2*k} (1 - x^j).

Table of values

List of values

A318155 Expansion of (1/(1 - x)) * Sum_{k>=0} x^(k(2k+1)) / Product_{j=1..2*k} (1 - x^j).