A216657 - OEIS

A216657 as a simple table

n	a(n)
1	2
2	0
3	1
4	1
5	2
6	2
7	2
8	4
9	6
10	7
11	11
12	14
13	20
14	28
15	39
16	55
17	75
18	104
19	145
20	202
21	280
22	390
23	541
24	752
25	1045
26	1452
27	2017
28	2803
29	3895
30	5412
31	7520
32	10449
33	14519
34	20174
35	28031
36	38950
37	54120
38	75200
39	104490
40	145188
41	201738
42	280314
43	389496
44	541202
45	751998
46	1044898
47	1451881

[2,0,1,1,2,2,2,4,6,7,11,14,20,28,39,55,75,104,145, 202,280,390,541,752,1045,1452,2017,2803,3895,5412, 7520,10449,14519,20174,28031,38950,54120,75200, 104490,145188,201738,280314,389496,541202,751998, 1044898,1451881]