OFFSET
1,3
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
Eric Weisstein's World of Mathematics, Digit
MATHEMATICA
Select[Range[0, 180], Mod[Length[IntegerDigits[#1]], 2] == 1 && Mod[Length[Union[IntegerDigits[#1]]], 2] == 1 & ]
Join[{0}, Select[Range[200], AllTrue[{IntegerLength[#], Count[DigitCount[#], _?(#>0&)]}, OddQ]&]] (* Harvey P. Dale, Dec 16 2023 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Ilya Gutkovskiy, Jan 08 2017
STATUS
approved