A231194 - OEIS

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A231194 as a simple table

n	a(n)
1	538
2	31665
3	2001156
4	125862699
5	7925306181
6	498915418541
7	31409217221246
8	1977358522670046
9	124484128282635828
10	7836867646402697860
11	493368077989496076512
12	31059866158795282895038
13	1955366244648665136009175

[538,31665,2001156,125862699,7925306181, 498915418541,31409217221246,1977358522670046, 124484128282635828,7836867646402697860, 493368077989496076512,31059866158795282895038, 1955366244648665136009175]