A230899 - OEIS

A230899 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	2
6	0
7	0
8	2
9	2
10	0
11	0
12	10
13	14
14	10
15	0
16	0
17	22
18	34
19	34
20	22
21	0
22	0
23	70
24	198
25	388
26	198
27	70
28	0
29	0
30	186
31	810
32	2722
33	2722
34	810
35	186
36	0
37	0
38	538
39	3706
40	23884
41	40762
42	23884
43	3706
44	538
45	0
46	0
47	1494
48	16918
49	190364
50	579218
51	579218
52	190364
53	16918
54	1494
55	0
56	0
57	4230
58	76318

[0,0,0,0,2,0,0,2,2,0,0,10,14,10,0,0,22,34,34,22,0, 0,70,198,388,198,70,0,0,186,810,2722,2722,810,186, 0,0,538,3706,23884,40762,23884,3706,538,0,0,1494, 16918,190364,579218,579218,190364,16918,1494,0,0, 4230,76318]