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A129214 Numbers m such that 8!*m-/+1 are twin primes. +0
4
6, 7, 27, 73, 74, 78, 87, 88, 96, 99, 109, 131, 146, 164, 165, 173, 179, 198, 202, 213, 214, 215, 220, 228, 239, 286, 320, 342, 348, 397, 400, 419, 468, 511, 516, 527, 532, 543, 569, 571, 578, 584, 590, 595, 621, 624, 649, 663, 679, 686, 707, 715, 716, 723 (list; graph; listen)
OFFSET

1,1

COMMENT

A014574 Average of twin prime pairs. A127545 Multiples of 7 such that n -/+ 1 are twin primes. Numbers m such that (N!*m -/+ 1) are twin primes, cases N=7,9,10 in A129213, A129215, A129216.

FORMULA

8!*a(n) are terms in A014574.

MATHEMATICA

s={}; Do[m=40320k; If[PrimeQ[m-1]&&PrimeQ[m+1], AppendTo[s, k]], {k, 1000}]; s

CROSSREFS

Cf. A014574, A127545, A129213, A129215, A129216.

Sequence in context: A041078 A067229 A041535 this_sequence A042419 A037956 A095369

Adjacent sequences: A129211 A129212 A129213 this_sequence A129215 A129216 A129217

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)gmail.com), Apr 03 2007

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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