A013806 - OEIS

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A013806 as a simple table

n	a(n)
0	17
1	1419857
2	118587876497
3	9904578032905937
4	827240261886336764177
5	69091933913008732880827217
6	5770627412348402378939569991057
7	481968572106750915091411825223071697
8	40254497110927943179349807054456171205137

[17,1419857,118587876497,9904578032905937, 827240261886336764177,69091933913008732880827217, 5770627412348402378939569991057, 481968572106750915091411825223071697, 40254497110927943179349807054456171205137]