A301439 - OEIS

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A301439 as a simple table

n	a(n)
1	8
2	128
3	1708
4	23672
5	327848
6	4543028
7	62956480
8	872451104
9	12090455460
10	167549990744
11	2321914313636
12	32177179696056
13	445912620471852
14	6179474617725600
15	85635402098610152
16	1186738767676838336

[8,128,1708,23672,327848,4543028,62956480, 872451104,12090455460,167549990744,2321914313636, 32177179696056,445912620471852,6179474617725600, 85635402098610152,1186738767676838336]