A190311 - OEIS

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A190311

Number of nonzero digits when writing n in base where place values are positive cubes, cf. A000433.

0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,10

COMMENTS

For n > 0: a(A000578(n)) = 1; for n > 1: a(A001093(n)) = 2;

a(n) <= A048766(n).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

PROG

(Haskell)

a190311 n = g n $ reverse $ takeWhile (<= n) $ tail a000578_list where

g _ [] = 0