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A179526 (3^k - 1)/2 appears 3^(k-1) times, k>0. 3
1, 4, 4, 4, 13, 13, 13, 13, 13, 13, 13, 13, 13, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..62.

FORMULA

a(n+1) = 3*a(floor(n/3)) + 1; a(0) = 1.

CROSSREFS

Cf. A003462, A007448, A003817.

Sequence in context: A217771 A261321 A245517 * A098525 A141666 A102127

Adjacent sequences:  A179523 A179524 A179525 * A179527 A179528 A179529

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jul 18 2010

EXTENSIONS

Erroneous comment deleted by Reinhard Zumkeller, Jul 23 2010

STATUS

approved

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Last modified April 6 14:08 EDT 2020. Contains 333276 sequences. (Running on oeis4.)