A057760 Numbers n such that 2 is a cube mod n.

1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 23, 25, 29, 30, 31, 33, 34, 41, 43, 46, 47, 50, 51, 53, 55, 58, 59, 62, 66, 69, 71, 75, 82, 83, 85, 86, 87, 89, 93, 94, 101, 102, 106, 107, 109, 110, 113, 115, 118, 121, 123, 125, 127, 129, 131, 137, 138, 141, 142

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

Cf. A057126, A057761.

Sequence in context: A076474 A324968 A255059 * A074243 A302539 A322912

Adjacent sequences: A057757 A057758 A057759 * A057761 A057762 A057763

Keyword

nonn

Author

N. J. A. Sloane, Nov 01 2000

Extensions

Checked by T. D. Noe, Apr 19 2007

Status

approved