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A129216 Numbers m such that 10!*m-/+1 are twin primes. +0
4
14, 20, 39, 61, 70, 72, 84, 107, 136, 235, 279, 281, 282, 319, 324, 360, 369, 422, 451, 513, 539, 547, 594, 598, 611, 647, 673, 684, 744, 783, 809, 823, 851, 911, 918, 919, 935, 957, 968 (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=7,8,9 in A129213, A129214, A129215.

FORMULA

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

MATHEMATICA

s={}; Do[m=3628800k; If[PrimeQ[m-1]&&PrimeQ[m+1], AppendTo[s, k]], {k, 1000}]; s

CROSSREFS

Cf. A014574, A127545, A129213, A129214, A129215.

Sequence in context: A063848 A110968 A054017 this_sequence A067796 A015797 A064974

Adjacent sequences: A129213 A129214 A129215 this_sequence A129217 A129218 A129219

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)gmail.com), Apr 04 2007

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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