A280282 - OEIS

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A280282 as a simple table

n	a(n)
1	8
2	2894
3	259040
4	18844474
5	1240628942
6	77217209188
7	4633270354464
8	270955366695864
9	15546377295977053
10	878972943594068704
11	49118677321905379365
12	2718859223224974395528
13	149313335035761869484749

[8,2894,259040,18844474,1240628942,77217209188, 4633270354464,270955366695864,15546377295977053, 878972943594068704,49118677321905379365, 2718859223224974395528,149313335035761869484749]