0,3

David W. Wilson, Table of n, a(n) for n = 0..10000

Index entries for sequences related to final digits of numbers

(PARI) for(n=0, 22, m=n!!; while(Mod(m, 10) == 0, m=m/10); print(Mod(m, 10)))

Cf. A000197, A008904.

Sequence in context: A167909 A185421 A219976 * A086447 A196872 A140219

Adjacent sequences: A063941 A063942 A063943 * A063945 A063946 A063947

nonn,base

Jason Earls, Sep 01 2001

More terms from David W. Wilson, Sep 05 2001, who remarks that "I'll tell you, computing (107!)! took up some disk space!"

approved