A378238 - OEIS

A378238 as a simple table

n	a(n)
0	1
1	1
2	0
3	1
4	2
5	0
6	1
7	4
8	14
9	0
10	1
11	6
12	32
13	134
14	0
15	1
16	8
17	54
18	324
19	1482
20	0
21	1
22	10
23	80
24	578
25	3696
26	17818
27	0
28	1
29	12
30	110
31	904
32	6810
33	45316
34	226214
35	0
36	1
37	14
38	144
39	1310
40	11008
41	85278
42	583152
43	2984206
44	0
45	1
46	16
47	182
48	1804
49	16490
50	140936
51	1113854
52	7769348
53	40503890
54	0

[1,1,0,1,2,0,1,4,14,0,1,6,32,134,0,1,8,54,324, 1482,0,1,10,80,578,3696,17818,0,1,12,110,904,6810, 45316,226214,0,1,14,144,1310,11008,85278,583152, 2984206,0,1,16,182,1804,16490,140936,1113854, 7769348,40503890,0]