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A091301
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Primes of the form p*q + p - q, where p and q are primes.
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3
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5, 7, 13, 17, 19, 29, 31, 37, 41, 43, 61, 67, 73, 89, 97, 103, 109, 113, 127, 137, 139, 149, 151, 157, 181, 193, 197, 199, 211, 229, 233, 241, 257, 271, 277, 281, 283, 307, 313, 317, 337, 349, 353, 373, 379, 389, 397, 401, 409, 421, 433, 449, 457, 461, 463, 487
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
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PROG
| (PARI) \\ Charles R Greathouse IV, Feb 15 2011
A091301(lim)=my(v=List(), t); forprime(q=2, lim, forprime(p=2, (lim+q)\(q+1), if(ispseudoprime(t=p*q+p-q), listput(v, t)))); vecsort(Vec(v), , 8)
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CROSSREFS
| Primes of the form p*q+p+q, where p and q are primes, are in A066938.
Cf. A091310.
Sequence in context: A177017 A136089 A040995 * A040125 A106067 A028311
Adjacent sequences: A091298 A091299 A091300 * A091302 A091303 A091304
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KEYWORD
| easy,nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Feb 21 2004
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