A165269 - OEIS

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A165269 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	5589761970
10	67077142704
11	804925701294
12	9659108281680
13	115909297773984
14	1390911554013696
15	16690938416875008
16	200291258227027968

[1,13,156,1872,22464,269568,3234816,38817792, 465813504,5589761970,67077142704,804925701294, 9659108281680,115909297773984,1390911554013696, 16690938416875008,200291258227027968]