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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
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, 21, 22, 24, 26, 28, 29, 32, 33, 35, 37, 39, 40, 44, 45, 47, 49, 52, 53, 56, 57, 60, 63, 65, 66, 70, 71, 74, 76, 79, 80, 84, 86, 89, 91, 93, 94, 100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,17

LINKS

Table of n, a(n) for n=1..68.

MATHEMATICA

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 *)

CROSSREFS

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

Sequence in context: A193096 A309129 A307345 * A049812 A093668 A026501

Adjacent sequences:  A033107 A033108 A033109 * A033111 A033112 A033113

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 7 05:14 EST 2019. Contains 329839 sequences. (Running on oeis4.)