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Number of different cubes of mappings of a finite set of n elements into itself.
8

%I #10 Jan 24 2019 15:44:32

%S 1,1,4,19,116,985,11026,145621,2199240,37942785,743755750

%N Number of different cubes of mappings of a finite set of n elements into itself.

%C The same as A102687, but now for cubic compositions, a(n) is the number of different mappings g that admit at least one mapping f as the cubic root (g=fofof) in terms of the composition.

%Y Column k=3 of A247026.

%K more,nonn

%O 0,3

%A _Carlos Alves_, Aug 05 2009

%E a(0) from _Alois P. Heinz_, Sep 09 2014

%E a(8)-a(10) from _Bert Dobbelaere_, Jan 24 2019