OFFSET
0,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..848
FORMULA
MATHEMATICA
Table[ EulerPhi[ n*2^n + 1 ], {n, 1, 30} ]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Aug 31 2000
STATUS
approved