A094938 - OEIS

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A094938 as a simple table

n	a(n)
1	1
2	63
3	2511
4	92583
5	3352671
6	120873303
7	4353033231
8	156723545223
9	5642176768191
10	203119525916343
11	7312313393341551
12	263243376303474663
13	9476762394213697311
14	341163453817290588183
15	12281884406052838539471

[1,63,2511,92583,3352671,120873303,4353033231, 156723545223,5642176768191,203119525916343, 7312313393341551,263243376303474663, 9476762394213697311,341163453817290588183, 12281884406052838539471]