OFFSET
1,1
COMMENTS
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Gray Code.
Wikipedia, Gray code.
FORMULA
a(n) = A081706(n) + 1. - Hugo Pfoertner, May 16 2021
EXAMPLE
3 is a term since its Gray code, 10, has 1 trailing zero, and 1 is odd.
15 is a term since its Gray code, 1000, has 3 trailing zeros, and 3 is odd.
MATHEMATICA
Select[Range[180], OddQ @ IntegerExponent[# * (# + 1)/2, 2] &]
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Amiram Eldar, May 15 2021
STATUS
approved