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A033109 Number of 8's when n is written in base b for 2<=b<=n+1. 10
0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 4, 1, 2, 2, 3, 1, 3, 1, 3, 3, 2, 1, 4, 1, 3, 2, 3, 1, 4, 2, 3, 2, 2, 1, 6, 1, 2, 3, 4, 3, 5, 2, 4, 3, 5, 2, 8, 2, 3, 4, 4, 3, 5, 2, 7, 5, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,26

LINKS

Table of n, a(n) for n=1..90.

MATHEMATICA

f[n_] := Count[Flatten@ Table[ IntegerDigits[n, b], {b, 2, n + 1}], 8]; Array[f, 90] (* Robert G. Wilson v, Nov 14 2012 *)

CROSSREFS

Cf. A033093, A033095, A033097, A033099, A033101, A033103, A033105, A033107, A033110, A033111.

Sequence in context: A086435 A266226 A099305 * A321469 A235644 A298475

Adjacent sequences:  A033106 A033107 A033108 * A033110 A033111 A033112

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 9 22:27 EST 2019. Contains 329880 sequences. (Running on oeis4.)