A039906 - OEIS

A039906 as a simple table

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	3
7	2
8	4
9	5
10	6
11	9
12	11
13	12
14	19
15	22
16	30
17	34
18	44
19	54
20	69
21	86
22	103
23	123
24	157
25	187
26	232
27	276
28	331
29	399
30	490
31	579
32	698
33	820
34	983
35	1179
36	1398
37	1646
38	1944
39	2288
40	2730
41	3190
42	3758
43	4374
44	5136
45	6043

[0,1,1,1,1,3,2,4,5,6,9,11,12,19,22,30,34,44,54,69, 86,103,123,157,187,232,276,331,399,490,579,698, 820,983,1179,1398,1646,1944,2288,2730,3190,3758, 4374,5136,6043]