A098269 - OEIS

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A098269 as a simple table

n	a(n)
0	1
1	8
2	94
3	1232
4	16966
5	240368
6	3468844
7	50712992
8	748553926
9	11131168688
10	166498969924
11	2502416381792
12	37759888297756
13	571681667171168
14	8679980422677784
15	132116085646644032
16	2015249400937940806

[1,8,94,1232,16966,240368,3468844,50712992, 748553926,11131168688,166498969924,2502416381792, 37759888297756,571681667171168,8679980422677784, 132116085646644032,2015249400937940806]