A125811 - OEIS

A125811 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	5
6	8
7	11
8	15
9	20
10	26
11	32
12	39
13	47
14	56
15	66
16	76
17	87
18	99
19	112
20	126
21	141
22	156
23	172
24	189
25	207
26	226
27	246
28	267
29	288
30	310
31	333
32	357
33	382
34	408
35	435
36	463
37	491
38	520
39	550
40	581
41	613
42	646
43	680
44	715
45	751
46	787
47	824
48	862
49	901
50	941
51	982
52	1024
53	1067
54	1111
55	1156
56	1201

[1,1,1,2,3,5,8,11,15,20,26,32,39,47,56,66,76,87, 99,112,126,141,156,172,189,207,226,246,267,288, 310,333,357,382,408,435,463,491,520,550,581,613, 646,680,715,751,787,824,862,901,941,982,1024,1067, 1111,1156,1201]