A213065 a(n) = n^n! - n!^n.
-1, 0, 0, 513, 281474976378880, 752316384526264005099991383822237233803945956334136013765601092018187046026142190625
Offset: 0
Keywords
Programs
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Mathematica
Table[n^n! - n!^n, {n, 0, 4}] (* T. D. Noe, Jun 04 2012 *) -
PARI
a(n) = n^n! - n!^n \\ Stefano Spezia, Aug 02 2025
Extensions
a(5) from Stefano Spezia, Aug 02 2025
Comments