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A076504 Numbers n such that (n-1,n+1) and (n/2-1,n/2+1) are both pairs of twin primes. +0
1
12, 60, 1320, 1620, 4260, 5100, 6660, 6780, 11700, 12540, 21060, 66360, 83220, 88260, 107100, 110880, 114660, 127680, 130200, 140760, 141960, 144540, 148200, 149520, 157560, 161340, 163860, 175080, 186480, 204600, 230940, 249540 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Equals 2*A066388.

Sequence in context: A108096 A056388 A056378 this_sequence A044150 A044531 A114241

Adjacent sequences: A076501 A076502 A076503 this_sequence A076505 A076506 A076507

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Oct 15, 2002

EXTENSIONS

Definition corrected by Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Apr 12 2009

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Last modified November 27 14:17 EST 2009. Contains 167569 sequences.


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