A066447 - OEIS

A066447 as a simple table

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	4
6	6
7	8
8	10
9	13
10	16
11	20
12	26
13	32
14	40
15	50
16	61
17	74
18	90
19	108
20	130
21	156
22	186
23	222
24	264
25	313
26	370
27	436
28	512
29	600
30	702
31	818
32	952
33	1106
34	1282
35	1484
36	1715
37	1978
38	2278
39	2620
40	3008
41	3448
42	3948
43	4512
44	5150
45	5872
46	6684
47	7600
48	8632
49	9791
50	11094
51	12558
52	14198
53	16036
54	18096
55	20398

[1,1,2,2,3,4,6,8,10,13,16,20,26,32,40,50,61,74,90, 108,130,156,186,222,264,313,370,436,512,600,702, 818,952,1106,1282,1484,1715,1978,2278,2620,3008, 3448,3948,4512,5150,5872,6684,7600,8632,9791, 11094,12558,14198,16036,18096,20398]