%I #8 Oct 02 2014 17:53:57
%S 2,1,1,1,1,1,2,1,3,2,2,1,1,1,1,1,2,1,3,2,2,1,1,1,1,1,2,1,3,2,2,1,1,1,
%T 1,1,2,1,3,2,2,1,1,1,1,1,2,1,3,2,2,1,1,1,1,1,2,1,3,2,3,2,2,2,2,2,3,2,
%U 4,3,2,1,1,1,1,1,2,1,3,2,4,3,3,3,3,3,4,3,5,4,3,2,2,2,2,2,3,2,4,3,3,2,2,2,2
%N Number of connected components remaining when decimal expansion of the number n is cut from a piece of paper.
%C Assumes that 4 is represented without a hole.
%t a[n_ /; 0 <= n <= 9] := a[n] = {2, 1, 1, 1, 1, 1, 2, 1, 3, 2}[[n + 1]]; a[n_] := Total[a /@ (id = IntegerDigits[n])]  Length[id] + 1 ; Table[a[n], {n, 0, 104}] (* _JeanFrançois Alcover_, Nov 22 2013 *)
%Y Cf. A064529, A064530. Equals A064532 + 1.
%K nonn,easy,base
%O 0,1
%A _N. J. A. Sloane_, Oct 07 2001
%E More terms from _Matthew Conroy_, Oct 09 2001
