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A092574 Positive integers that can be represented in the form x^2+3y^2 with (x,y)=1. +0
2
4, 7, 12, 13, 19, 21, 28, 31, 37, 39, 43, 49, 52, 57, 61, 67, 73, 76, 79, 84, 91, 93, 97, 103, 109, 111, 124, 127, 129, 133, 139, 147, 148, 151, 156, 157, 163, 169, 172, 181, 183, 193, 196, 199, 201, 211, 217, 219, 223, 228, 229, 237, 241, 244, 247, 259, 268 (list; graph; listen)
OFFSET

1,1

COMMENT

Superset of primes of the form 6n+1 (A002476).

LINKS

Eric Weisstein's World of Mathematics, Eulers 6n Plus 1 Theorem

CROSSREFS

Cf. A002476, A092572, A092573, A092575.

Sequence in context: A072732 A083487 A092572 this_sequence A058271 A161843 A085048

Adjacent sequences: A092571 A092572 A092573 this_sequence A092575 A092576 A092577

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Feb 28, 2004

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.


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