A191601 - OEIS

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A191601 as a simple table

n	a(n)
1	2
2	7
3	41
4	428
5	7588
6	235992
7	12750773
8	1196790145
9	195443817921
10	55484180929526
11	27388366928551712
12	23507551792998353446
13	35081808543792928475951
14	91032423727427789694636918
15	410722028606679785606473590135

[2,7,41,428,7588,235992,12750773,1196790145, 195443817921,55484180929526,27388366928551712, 23507551792998353446,35081808543792928475951, 91032423727427789694636918, 410722028606679785606473590135]