OFFSET
0,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..1660
FORMULA
MAPLE
seq(2^(2*n)-(2*n-1), n=0..20);
MATHEMATICA
Table[2^(2*n) - (2*n - 1), {n, 0, 25}] (* Amiram Eldar, Dec 01 2021 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jorge Coveiro, Dec 26 2004
EXTENSIONS
More terms from Emeric Deutsch, Feb 15 2005
STATUS
approved