A230643 - OEIS

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A230643

Number of integers m such that m + (sum of digits in base-3 representation of m) = 2n.

13

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

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

OFFSET

0,3

COMMENTS

Number of times 2n appears in A230641.

LINKS

Donovan Johnson, Table of n, a(n) for n = 0..10000

Index entries for Colombian or self numbers and related sequences

CROSSREFS

Cf. A230641, A230642.

Related base-3 sequences: A053735, A134451, A230641, A230642, A230643, A230853, A230854, A230855, A230856, A230639, A230640, A010063 (trajectory of 1)

Sequence in context: A043531 A297772 A043556 * A344117 A163367 A057226

Adjacent sequences: A230640 A230641 A230642 * A230644 A230645 A230646

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 31 2013

STATUS

approved