OFFSET
0,2
COMMENTS
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..11
MATHEMATICA
a[n_] := (2^(2^n)-1) * 2^n; Array[a, 9, 0]
PROG
(PARI) a(n) = (2^(2^n)-1) * 2^n;
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Amiram Eldar, Jun 22 2023
STATUS
approved