A317060 - OEIS

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A317060 as a simple table

n	a(n)
1	1
2	1
3	3
4	14
5	85
6	642
7	5782
8	60484
9	720495
10	9627210
11	142583430
12	2318126196
13	41042117558
14	786002475244
15	16189215818220
16	356847596226840
17	8381418010559225
18	208967274455769810
19	5511890008010697306

[1,1,3,14,85,642,5782,60484,720495,9627210, 142583430,2318126196,41042117558,786002475244, 16189215818220,356847596226840,8381418010559225, 208967274455769810,5511890008010697306]