A320104 - OEIS

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A320104 as a simple table

n	a(n)
1	1
2	1
3	3
4	0
5	20
6	5
7	4
8	15910
9	2
10	2
11	1
12	2
13	6
14	81598
15	5
16	366
17	588
18	5
19	202
20	111603136724
21	104
22	13
23	246202
24	0
25	61
26	492
27	439943534049216658488928456219783705840806353246605875

[1,1,3,0,20,5,4,15910,2,2,1,2,6,81598,5,366,588,5, 202,111603136724,104,13,246202,0,61,492, 43994353404921665848892845621978370584080635324660\ 5875]