A208463 - OEIS

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A208463 as a simple table

n	a(n)
1	15
2	4041
3	4132120
4	10318694804
5	51074630353994
6	441285917587055633
7	6105599904286957450405
8	127076755601333057601660992
9	3793882208792084308313815728802
10	156506565477239116898837571013067198

[15,4041,4132120,10318694804,51074630353994, 441285917587055633,6105599904286957450405, 127076755601333057601660992, 3793882208792084308313815728802, 156506565477239116898837571013067198]