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A165635 Primes of the form (p^2-3)/2 where p is also prime. 0
3, 11, 23, 59, 83, 179, 263, 419, 479, 683, 839, 1103, 2243, 2663, 3119, 4703, 5099, 5303, 5939, 11399, 12323, 19403, 22259, 25763, 27143, 28559, 33023, 34583, 42923, 47123, 54779, 56783, 60899, 62303, 64439, 67343, 75659, 78803, 83639, 98123 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

The sequence could be generated by searching for squared primes p^2 in A153238.

FORMULA

a(n) = (A110589(n)^2-3)/2 .

EXAMPLE

The prime 3=(3^2-3)/2 is generated by p=3. The prime 11=(5^2-3)/2 is generated by p=5. The prime 23 by p=7.

CROSSREFS

Cf. A110589, A153238

Sequence in context: A128928 A145477 A098828 * A032026 A158034 A002515

Adjacent sequences:  A165632 A165633 A165634 * A165636 A165637 A165638

KEYWORD

nonn

AUTHOR

Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Sep 23 2009

EXTENSIONS

More terms from Max Alekseyev (maxale(AT)gmail.com), Sep 25 2009

Comment clarified by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 07 2009

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Last modified February 15 16:49 EST 2012. Contains 205824 sequences.