A280264 - OEIS

A280264 as a simple table

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	2
6	2
7	3
8	2
9	5
10	4
11	6
12	7
13	8
14	10
15	12
16	15
17	16
18	21
19	23
20	28
21	33
22	38
23	44
24	51
25	60
26	68
27	79
28	91
29	103
30	120
31	136
32	156
33	177
34	202
35	230
36	260
37	296
38	333
39	378
40	425
41	480
42	540
43	606
44	682
45	764
46	857
47	958
48	1073
49	1197
50	1337
51	1492
52	1660
53	1849
54	2057
55	2285
56	2537
57	2816

[1,0,1,1,1,2,2,3,2,5,4,6,7,8,10,12,15,16,21,23,28, 33,38,44,51,60,68,79,91,103,120,136,156,177,202, 230,260,296,333,378,425,480,540,606,682,764,857, 958,1073,1197,1337,1492,1660,1849,2057,2285,2537, 2816]