A281988 - OEIS

A281988 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	2
9	2
10	0
11	0
12	16
13	121
14	16
15	0
16	0
17	88
18	1054
19	1054
20	88
21	0
22	0
23	432
24	7053
25	10852
26	7053
27	432
28	0
29	0
30	2008
31	41118
32	89414
33	89414
34	41118
35	2008
36	0
37	0
38	8992
39	226025
40	659508
41	938730
42	659508
43	226025
44	8992
45	0
46	0
47	39200
48	1189600
49	4668914
50	8777256
51	8777256

[0,0,0,0,0,0,0,2,2,0,0,16,121,16,0,0,88,1054,1054, 88,0,0,432,7053,10852,7053,432,0,0,2008,41118, 89414,89414,41118,2008,0,0,8992,226025,659508, 938730,659508,226025,8992,0,0,39200,1189600, 4668914,8777256,8777256]