OFFSET
1,2
COMMENTS
Numbers not divisible by 4 or 9 and whose prime divisors are in A040028. - Eric M. Schmidt, Jan 25 2014
LINKS
T. D. Noe, Table of n, a(n) for n=1..1000
MAPLE
with(numtheory); [seq(mroot(2, 3, p), p=1..400)];
PROG
(PARI) is(n)=ispower(Mod(2, n), 3) \\ Charles R Greathouse IV, Apr 05 2012
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 01 2000
EXTENSIONS
Checked by T. D. Noe, Apr 19 2007
STATUS
approved