A091605 - OEIS

A091605 as a simple table

n	a(n)
2	1
3	0
4	2
5	2
6	3
7	4
8	7
9	8
10	12
11	15
12	21
13	26
14	35
15	43
16	57
17	70
18	89
19	109
20	138
21	167
22	208
23	251
24	309
25	371
26	452
27	539
28	652
29	775
30	929
31	1099
32	1311
33	1543
34	1829
35	2146
36	2529
37	2957
38	3469
39	4040
40	4721
41	5481
42	6377
43	7381
44	8559
45	9875
46	11412
47	13133
48	15128
49	17364
50	19945
51	22833

[1,0,2,2,3,4,7,8,12,15,21,26,35,43,57,70,89,109, 138,167,208,251,309,371,452,539,652,775,929,1099, 1311,1543,1829,2146,2529,2957,3469,4040,4721,5481, 6377,7381,8559,9875,11412,13133,15128,17364,19945, 22833]