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A070076 Number of n-digit twin prime pairs. +0
6
2, 6, 27, 170, 1019, 6945, 50811, 381332, 3380494, 23988173, 196963369, 1646209172, 13964079652, 119945656793 (list; graph; listen)
OFFSET

1,1

LINKS

Anonymous, Twin Prime Index(1 through 394000000)

X. Gourdon & P. Sebah, Online computation of the first primes and twin primes up to 50000

CROSSREFS

Cf. A007508.

Sequence in context: A032186 A122938 A058712 this_sequence A130455 A005270 A080839

Adjacent sequences: A070073 A070074 A070075 this_sequence A070077 A070078 A070079

KEYWORD

hard,more,nonn,base

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), May 06 2002

EXTENSIONS

a(6) corrected by Harvey P. Dale (hpd1(AT)nyu.edu), Sep 02 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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