A195218 - OEIS

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A195218 as a simple table

n	a(n)
1	1
2	127
3	117585
4	845613769
5	47764170577925
6	21369796486647028143
7	76019997788404353762724447
8	2155668406192527252815282495516543

[1,127,117585,845613769,47764170577925, 21369796486647028143,76019997788404353762724447, 2155668406192527252815282495516543]