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A263109 n is the a(n)-th positive integer having its digitsum in base-12 representation. 4
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 2, 1, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 2, 1, 8, 8, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,12

COMMENTS

Ordinal transform of A053832. - Alois P. Heinz, Dec 23 2018

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Duodecimal

Eric Weisstein's World of Mathematics, Digit Sum

Wikipedia, Duodecimal

Wikipedia, Digit sum

PROG

(Haskell)

import Data.IntMap (empty, findWithDefault, insert)

a263109 n = a263109_list !! (n-1)

a263109_list = f 1 empty where

   f x m = y : f (x + 1) (insert q (y + 1) m) where

           y = findWithDefault 1 q m; q = a053832 x

CROSSREFS

Cf. A053832, A254524, A263017, A263110.

Sequence in context: A140438 A132211 A067441 * A044926 A074264 A194302

Adjacent sequences:  A263106 A263107 A263108 * A263110 A263111 A263112

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 09 2015

STATUS

approved

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Last modified August 2 15:51 EDT 2021. Contains 346428 sequences. (Running on oeis4.)