OFFSET
1,1
COMMENTS
A number n is k-persistent iff all of {n, 2n,..., kn} are pandigital (in the sense of A171102).
LINKS
Hans Havermann, Table of n, a(n) for n = 1..1000
Eric Weisstein's World of Mathematics, Persistent Number
PROG
(PARI) is_A051018(n, k=3)=10>#Set(Vec(Str(k*n))) & !while(k--, 9<#Set(Vec(Str(k*n)) | return) \\ M. F. Hasler, Jan 10 2012
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Definition corrected by Franklin T. Adams-Watters, Jan 09 2012
STATUS
approved