A034512 - OEIS

A034512 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	4
39	27
40	129
41	521
42	1848
43	5995
44	18216
45	52617
46	145975
47	391924
48	1024135
49	2615616
50	6550659
51	16129203
52	39123510

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,4,27,129,521,1848,5995, 18216,52617,145975,391924,1024135,2615616,6550659, 16129203,39123510]