A221690 - OEIS

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A221690 as a simple table

n	a(n)
1	13
2	1336
3	95076
4	7033429
5	520770016
6	38558774282
7	2854945130275
8	211383822013331
9	15651127479431664
10	1158829375610866111
11	85801199678309146886
12	6352829859620504245102
13	470371595862197876296617

[13,1336,95076,7033429,520770016,38558774282, 2854945130275,211383822013331,15651127479431664, 1158829375610866111,85801199678309146886, 6352829859620504245102,470371595862197876296617]