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A130800 Numbers n such that both 2n+1 and 3n+1 are primes. +0
1
2, 6, 14, 20, 26, 36, 50, 54, 74, 90, 116, 140, 146, 174, 200, 204, 210, 224, 230, 270, 284, 306, 330, 336, 350, 354, 384, 404, 410, 426, 440, 476, 510, 516, 554, 564, 596, 600, 624, 644, 650, 704, 714, 726, 740, 746, 834, 846, 894, 930, 944 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Adjacent sequences: A130797 A130798 A130799 this_sequence A130801 A130802 A130803

Sequence in context: A140525 A032643 A067664 this_sequence A067262 A107369 A009779

KEYWORD

nonn

AUTHOR

Max Alekseyev, Jul 18 2007

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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