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A092761
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Primes of form p(n)*p(n+1)-4.
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1
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2, 11, 31, 73, 139, 433, 1759, 2017, 5179, 6553, 8629, 10399, 14347, 16633, 20707, 39199, 53353, 131749, 159193, 186619, 216217, 250993, 471949, 509767, 608347, 736159, 777919, 938953, 1022113, 1065019, 1238749, 1327099, 1476217, 1640953
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MATHEMATICA
| f[n_]:=Prime[n]*Prime[n+1]-4; lst={}; Do[If[PrimeQ[f[n]], AppendTo[lst, f[n]]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Feb 10 2010]
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CROSSREFS
| Sequence in context: A197642 A121346 A106847 * A087933 A190259 A190261
Adjacent sequences: A092758 A092759 A092760 * A092762 A092763 A092764
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KEYWORD
| nonn,easy
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Apr 13 2004
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EXTENSIONS
| Corrected and extended by Pab Ter (pabrlos(AT)yahoo.com), May 24 2004
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