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A135502 Admirable numbers in the middle of twin primes. 0
12, 30, 42, 102, 138, 270, 282, 618, 642, 822, 1488, 1698, 1878, 2082, 2238, 2382, 2658, 2802, 3462, 3558, 3918, 4638, 4722, 5442, 6198, 6702, 8538, 8598, 9678, 10938, 12162, 12378, 12822, 12918, 13218, 13722, 13758, 13998, 14082, 16062, 17418 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Numbers n such that n is admirable, n-1 is prime and n+1 is prime.

FORMULA

A014574 INTERSECT A111592. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 10 2008

EXAMPLE

30 is in the sequence, as 29=30-1 and 31=30+1 are a pair of twin primes.

CROSSREFS

Cf. A111592, A001359, A006512.

Sequence in context: A093507 A145470 A108278 * A125582 A031107 A019557

Adjacent sequences:  A135499 A135500 A135501 * A135503 A135504 A135505

KEYWORD

easy,nonn

AUTHOR

Olaf Voss (richyfourtythree(AT)yahoo.com), Feb 09 2008

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Last modified February 15 09:15 EST 2012. Contains 205753 sequences.