A112649 The a(k)-th Mersenne prime exponent is not a Gaussian prime (not 3 mod 4).

1, 3, 5, 6, 9, 10, 13, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 30, 33, 35, 36, 37, 38, 39

Offset

1,2

Links

Table of n, a(n) for n=1..24.

Formula

{k: A000043(k) <> 3 ( mod 4)}.

Crossrefs

Sequence in context: A187417 A072716 A167384 * A050083 A081175 A269110

Adjacent sequences: A112646 A112647 A112648 * A112650 A112651 A112652

Keyword

nonn

Author

Jorge Coveiro, Dec 27 2005

Extensions

Edited by Don Reble, Jan 25 2006

Status

approved