A363163 - OEIS

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A363163 as a simple table

n	a(n)
0	1
1	1
2	5
3	17
4	83
5	394
6	2278
7	13949
8	93898
9	670003
10	5059914
11	40033149
12	330555726
13	2836763749
14	25233047351
15	232080785282
16	2202802051834
17	21539083861802
18	216638327167235
19	2238260395921444
20	23725940481578999

[1,1,5,17,83,394,2278,13949,93898,670003,5059914, 40033149,330555726,2836763749,25233047351, 232080785282,2202802051834,21539083861802, 216638327167235,2238260395921444, 23725940481578999]