A050816 - OEIS

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A050816 as a simple table

n	a(n)
0	0
1	1
2	5
3	75025
4	514229
5	165580141
6	7778742049
7	2504730781961
8	17167680177565
9	259695496911122585
10	1779979416004714189
11	573147844013817084101
12	59425114757512643212875125
13	898923707008479989274290850145

[0,1,5,75025,514229,165580141,7778742049, 2504730781961,17167680177565,259695496911122585, 1779979416004714189,573147844013817084101, 59425114757512643212875125, 898923707008479989274290850145]