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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
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
Sequence in context: A099305 A334461 A338652 * A321469 A365460 A235644
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 19 01:22 EDT 2024. Contains 370952 sequences. (Running on oeis4.)