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A037399 Numbers n such that every base 6 digit of n is a base 8 digit of n. 5
1, 2, 3, 4, 5, 28, 80, 85, 86, 98, 115, 160, 172, 213, 266, 331, 345, 532, 691, 699, 705, 708, 717, 720, 727, 763, 765, 792, 799, 811, 819, 835, 851, 859, 861, 863, 864, 900, 916, 928, 1036, 1061, 1068, 1085, 1093, 1128, 1129, 1130 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

b68Q[n_]:=Module[{b6=Union[IntegerDigits[n, 6]], b8=Union[IntegerDigits[ n, 8]]}, And@@Table[ MemberQ[b8, b6[[i]]], {i, Length[b6]}]]; Select[Range[ 1200], b68Q] (* Harvey P. Dale, Mar 24 2012 *)

PROG

(Haskell)

import Data.List ((\\), nub)

a037399 n = a037399_list !! (n-1)

a037399_list = filter f [1..] where

   f x = null $ nub (ds 6 x) \\ nub (ds 8 x)

   ds b x = if x > 0 then d : ds b x' else []  where (x', d) = divMod x b

-- Reinhard Zumkeller, May 30 2013

CROSSREFS

Cf. A037398, A037400, A037401.

Sequence in context: A114333 A265098 A076209 * A220891 A220890 A250260

Adjacent sequences:  A037396 A037397 A037398 * A037400 A037401 A037402

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 29 01:04 EDT 2017. Contains 285604 sequences.