A005205 - OEIS

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A005205 as a simple table

n	a(n)
1	1
2	3
3	10
4	93
5	2521
6	612696
7	4019900977
8	6409020585966267
9	67040619014505181883304178
10	1118048584563024433220786501983631190591549
11	195042693446883195450571898296824337898272003171567594807867055549521

[1,3,10,93,2521,612696,4019900977, 6409020585966267,67040619014505181883304178, 1118048584563024433220786501983631190591549, 19504269344688319545057189829682433789827200317156\ 7594807867055549521]