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A031253 Write 2n-1 in base 5 and juxtapose. 15
1, 3, 1, 0, 1, 2, 1, 4, 2, 1, 2, 3, 3, 0, 3, 2, 3, 4, 4, 1, 4, 3, 1, 0, 0, 1, 0, 2, 1, 0, 4, 1, 1, 1, 1, 1, 3, 1, 2, 0, 1, 2, 2, 1, 2, 4, 1, 3, 1, 1, 3, 3, 1, 4, 0, 1, 4, 2, 1, 4, 4, 2, 0, 1, 2, 0, 3, 2, 1, 0, 2, 1, 2, 2, 1, 4, 2, 2, 1, 2, 2, 3, 2, 3, 0, 2, 3, 2, 2, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A271344 A183134 A053382 * A291624 A291635 A268386

Adjacent sequences:  A031250 A031251 A031252 * A031254 A031255 A031256

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 22 18:31 EST 2019. Contains 320400 sequences. (Running on oeis4.)