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A124489 Numbers n such that 2n-1, 4n-1, 6n-1, 8n-1, 10n-1 and 12n-1 are primes. 0
77385, 87675, 320775, 329175, 509355, 1137045, 1447110, 2623005, 3310965, 3974880, 4095000, 4339335, 5183220, 6163815, 6975780, 9080190, 9462285, 10957170, 11139975, 11148900, 12382755, 12796140, 15514695, 15917580 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Select[3*5*7*Range[160000], And @@ PrimeQ /@ ({2, 4, 6, 8, 10, 12}*# - 1) &] (*Chandler*)

CROSSREFS

Cf. A124485-A124492.

Sequence in context: A104327 A046720 A152498 * A183694 A206275 A157732

Adjacent sequences:  A124486 A124487 A124488 * A124490 A124491 A124492

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Nov 04 2006

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Last modified February 15 10:52 EST 2012. Contains 205763 sequences.