OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[500], Min[Abs[Differences[IntegerDigits[#, 8]]]]>3&] (* Harvey P. Dale, Aug 09 2014 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved