OFFSET
1,2
COMMENTS
The i's are indexed at zero. - Harvey P. Dale, Aug 03 2021
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[150], AllTrue[Take[IntegerDigits[#, 3], {2, -1, 2}], EvenQ]&] (* Harvey P. Dale, Aug 03 2021 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Definition corrected by Sean A. Irvine, Nov 17 2020
STATUS
approved