%I #10 Jun 26 2021 14:27:08
%S 0,0,0,1,2,1,2,3,5,4,4,3,4,4,3,5,8,7,7,6,5,7,9,7,8,9,8,8,8,9,9,9,10,
%T 10,10,10,9,9,10,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
%U 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10
%N Number of common decimal digits of n! and (n+1)!.
%H Diana Mecum, <a href="/A076492/b076492.txt">Table of n, a(n) for n = 1..1000</a>
%t Table[Length[Intersection[IntegerDigits[(n+1)!, InterDigits[n! ]]], {n, 1, 100}]
%t Length[Intersection[#[[1]],#[[2]]]]&/@Partition[IntegerDigits[ Range[ 90]!],2,1] (* _Harvey P. Dale_, Jun 26 2021 *)
%Y Cf. A006880, A076489-A076491.
%K base,nonn
%O 1,5
%A _Labos Elemer_, Oct 21 2002
%E More terms from _Diana L. Mecum_, Jun 17 2007