OFFSET
1,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
a(n) ~ 3*n^2/4 + O(n*log(n)). - Amiram Eldar, Jan 16 2022
MATHEMATICA
Accumulate @ Select[Range[100], EvenQ[IntegerExponent[#, 2]] &] (* Amiram Eldar, Jan 16 2022 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Jun 17 2002
STATUS
approved