OFFSET
1,3
COMMENTS
Last term is a(53319412081141) = 18364758544493064720 = 'fedcba9876543210'. - Charles R Greathouse IV, Jun 16 2012
MATHEMATICA
Select[Range[0, 80], Max[DigitCount[#, 16]]<2&] (* Harvey P. Dale, Aug 11 2021 *)
CROSSREFS
KEYWORD
nonn,base,fini,easy
AUTHOR
STATUS
approved