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A088550
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Primes of the form x^6 + x^5 + x^4 + x^3 + x^2 + x + 1.
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0
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7, 127, 1093, 19531, 55987, 5229043, 8108731, 25646167, 321272407, 917087137, 3092313043, 4201025641, 9684836827, 31401724537, 47446779661, 52379047267, 83925549247, 100343116693, 141276239497, 153436090543, 265462278481
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MATHEMATICA
| lst={}; Do[a=1+n+n^2+n^3+n^4+n^5+n^6; If[PrimeQ[a], AppendTo[lst, a]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 02 2009]
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PROG
| (PARI) polypn(n, p) = { for(x=1, n, if(p%2, y=2, y=1); for(m=1, p, y=y+x^m; ); if(isprime(y), print1(y", ")); ) }
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CROSSREFS
| Sequence in context: A139987 A061744 A053716 * A064754 A025166 A139291
Adjacent sequences: A088547 A088548 A088549 * A088551 A088552 A088553
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KEYWORD
| nonn
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AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Nov 17 2003
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