A217569 - OEIS

A217569 as a simple table

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	1
6	2
7	2
8	3
9	3
10	4
11	5
12	6
13	7
14	9
15	10
16	12
17	14
18	17
19	19
20	23
21	26
22	31
23	35
24	42
25	47
26	55
27	62
28	72
29	81
30	94
31	105
32	121
33	136
34	155
35	175
36	199
37	222
38	252
39	282
40	318
41	355
42	400
43	445
44	501
45	556
46	624
47	693
48	774
49	857
50	957
51	1059
52	1178
53	1302
54	1446
55	1596
56	1769
57	1951
58	2158
59	2376
60	2624
61	2885
62	3182
63	3495
64	3847
65	4221
66	4642

[1,0,1,1,1,1,2,2,3,3,4,5,6,7,9,10,12,14,17,19,23, 26,31,35,42,47,55,62,72,81,94,105,121,136,155,175, 199,222,252,282,318,355,400,445,501,556,624,693, 774,857,957,1059,1178,1302,1446,1596,1769,1951, 2158,2376,2624,2885,3182,3495,3847,4221,4642]