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%I #7 Nov 14 2012 20:19:30
%S 0,0,0,0,1,1,1,1,1,1,2,3,4,5,6,7,9,10,12,13,15,16,19,20,22,24,26,27,
%T 31,33,36,39,43,45,51,53,57,60,63,67,74,76,79,82,88,91,98,100,104,109,
%U 113,116,124,127,132,136,141,144,151,155,162,166
%N Number of 5's when k is written in base b for all b and k satisfying 2<=b<=n+1, 1<=k<=n.
%t f[n_] := Count[ Flatten@ Table[ IntegerDigits[k, b], {k, n}, {b, 2, n + 1}], 5] - (n - 5); f[1] = f[2] = f[3] = f[4] = 0; Array[f, 62] (* _Robert G. Wilson v_, Nov 14 2012 *)
%Y Cf. A033094, A033096, A033098, A033100, A033102, A033103, A033106, A033108, A033110, A033112.
%K nonn,base
%O 1,11
%A _Clark Kimberling_
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