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A033110 Number of 8's when k is written in base b for all b and k satisfying 2<=b<=n+1, 1<=k<=n. 10

%I #7 Nov 15 2012 04:27:44

%S 0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,3,4,5,6,7,8,9,10,12,13,15,16,18,19,

%T 21,22,24,26,28,29,32,33,35,37,39,40,44,45,47,49,52,53,56,57,60,63,65,

%U 66,70,71,74,76,79,80,84,86,89,91,93,94,100

%N Number of 8'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}], 8] - (n - 8); f[1] = f[2] = f[3] = f[4] = f[5] = f[6] = f[7] = 0; Array[f, 68] (* _Robert G. Wilson v_, Nov 14 2012 *)

%Y Cf. A033094, A033096, A033098, A033100, A033102, A033104, A033106, A033108, A033109, A033112.

%K nonn,base

%O 1,17

%A _Clark Kimberling_

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