A390724 - OEIS

A390724 as a simple table

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	6
9	5
10	0
11	1
12	14
13	30
14	14
15	0
16	1
17	30
18	125
19	140
20	42
21	0
22	1
23	62
24	450
25	910
26	630
27	132
28	0
29	1
30	126
31	1505
32	4900
33	5880
34	2772
35	429
36	0
37	1
38	254
39	4830
40	23814
41	44100
42	35112
43	12012
44	1430
45	0
46	1
47	510
48	15125
49	108780
50	291942
51	349272
52	198198
53	51480
54	4862

[1,0,1,0,1,2,0,1,6,5,0,1,14,30,14,0,1,30,125,140, 42,0,1,62,450,910,630,132,0,1,126,1505,4900,5880, 2772,429,0,1,254,4830,23814,44100,35112,12012, 1430,0,1,510,15125,108780,291942,349272,198198, 51480,4862]