OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
MAPLE
g:= n -> n+convert(convert(n, base, 4), `+`):
select(`<=`, map(g, {$0..200}), 200); # Robert Israel, Jan 11 2022
CROSSREFS
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jan 07 2022
STATUS
approved