A075514 - OEIS

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A075514 as a simple table

n	a(n)
0	1
1	3
2	154
3	7941
4	429036
5	24123105
6	1399303662
7	83176893681
8	5041470373624
9	310449199290489
10	19369215839341710
11	1221826010437625703
12	77798300823672280164
13	4993767938470070592261
14	322795606469564782029126

[1,3,154,7941,429036,24123105,1399303662, 83176893681,5041470373624,310449199290489, 19369215839341710,1221826010437625703, 77798300823672280164,4993767938470070592261, 322795606469564782029126]