A113083 - OEIS

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A113083 as a simple table

n	a(n)
1	1
2	2
3	21
4	724
5	75695
6	23694838
7	22239639177
8	62747494950248
9	532868670719193651
10	13624738004791751175370
11	1048678107774203901392276461
12	242892250870416811233766661498812

[1,2,21,724,75695,23694838,22239639177, 62747494950248,532868670719193651, 13624738004791751175370, 1048678107774203901392276461, 242892250870416811233766661498812]