OFFSET

1,1

LINKS

Paul Tek, Table of n, a(n) for n = 1..10000

EXAMPLE

a(7) = 28 because among the multiples of 7, that is, 7, 14, 21, 28,... 28 is the smallest multiple with only even digits.

MATHEMATICA

Table[k = n; While[Length[Intersection[{1, 3, 5, 7, 9}, IntegerDigits[k]]] > 0, k = k + n]; k, {n, 100}] (* T. D. Noe, Jun 03 2013 *)

spme[n_]:=Module[{k=1}, While[AnyTrue[IntegerDigits[k*n], OddQ], k++]; k*n]; Array[spme, 70] (* Harvey P. Dale, Mar 19 2024 *)

CROSSREFS

KEYWORD

base,nonn,easy

AUTHOR

Amarnath Murthy, May 28 2001

EXTENSIONS

Corrected and extended by Larry Reeves (larryr(AT)acm.org), May 29 2001

STATUS

approved