A168834 - OEIS

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A168834 as a simple table

n	a(n)
0	1
1	13
2	156
3	1872
4	22464
5	269568
6	3234816
7	38817792
8	465813504
9	5589762048
10	67077144576
11	804925734912
12	9659108818944
13	115909305827328
14	1390911669927936
15	16690940039135232
16	200291280469622784

[1,13,156,1872,22464,269568,3234816,38817792, 465813504,5589762048,67077144576,804925734912, 9659108818944,115909305827328,1390911669927936, 16690940039135232,200291280469622784]