A036021 - OEIS

A036021 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	6
9	8
10	9
11	11
12	15
13	18
14	21
15	26
16	33
17	40
18	46
19	55
20	68
21	81
22	94
23	111
24	134
25	158
26	182
27	213
28	252
29	294
30	338
31	392
32	459
33	531
34	607
35	699
36	810
37	930
38	1059
39	1212
40	1393
41	1590
42	1804
43	2052
44	2342
45	2660
46	3005
47	3403
48	3862
49	4365
50	4914
51	5540
52	6255
53	7040
54	7899
55	8871

[1,1,1,1,2,3,3,4,6,8,9,11,15,18,21,26,33,40,46,55, 68,81,94,111,134,158,182,213,252,294,338,392,459, 531,607,699,810,930,1059,1212,1393,1590,1804,2052, 2342,2660,3005,3403,3862,4365,4914,5540,6255,7040, 7899,8871]