A183561 - OEIS

A183561 as a simple table

n	a(n)
4	1
5	0
6	1
7	1
8	3
9	3
10	5
11	6
12	10
13	13
14	20
15	23
16	35
17	44
18	61
19	78
20	103
21	131
22	174
23	219
24	285
25	355
26	456
27	567
28	721
29	894
30	1117
31	1382
32	1718
33	2109
34	2607
35	3180
36	3902
37	4747
38	5789
39	7010
40	8500
41	10251
42	12373
43	14867
44	17868
45	21369
46	25584
47	30505
48	36372
49	43233
50	51350
51	60834
52	72039

[1,0,1,1,3,3,5,6,10,13,20,23,35,44,61,78,103,131, 174,219,285,355,456,567,721,894,1117,1382,1718, 2109,2607,3180,3902,4747,5789,7010,8500,10251, 12373,14867,17868,21369,25584,30505,36372,43233, 51350,60834,72039]