A113077 - OEIS

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A113077 as a simple table

n	a(n)
0	1
1	3
2	15
3	123
4	1656
5	36987
6	1391106
7	89574978
8	10036638270
9	1986129275673
10	703168200003336
11	450303519404234922
12	526421174510139860241
13	1132076561237754405471033
14	4507472672071759672232970720

[1,3,15,123,1656,36987,1391106,89574978, 10036638270,1986129275673,703168200003336, 450303519404234922,526421174510139860241, 1132076561237754405471033, 4507472672071759672232970720]