OFFSET
1,2
LINKS
John Cerkan, Table of n, a(n) for n = 1..10000
PROG
(PARI) isok(n) = Set(digits(n, 2)) == Set(digits(n, 7)); \\ John Cerkan, Jan 13 2017
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Name edited by John Cerkan, Jan 14 2017
STATUS
approved