A169943 - OEIS

A169943 as a simple table

n	a(n)
2	1
3	0
4	3
5	4
6	7
7	8
8	21
9	20
10	53
11	56
12	89
13	112
14	197
15	220
16	397
17	456
18	711
19	850
20	1347
21	1428
22	2303
23	2642
24	3777
25	4636
26	6693
27	7550
28	11109
29	12876
30	17965
31	21000
32	29207
33	32952
34	46263
35	53372
36	71069
37	82660
38	111877
39	126042
40	172461
41	195898
42	256577

[1,0,3,4,7,8,21,20,53,56,89,112,197,220,397,456, 711,850,1347,1428,2303,2642,3777,4636,6693,7550, 11109,12876,17965,21000,29207,32952,46263,53372, 71069,82660,111877,126042,172461,195898,256577]