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A243957
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Primes of the form 2*n^2+66*n+31.
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2
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499, 787, 1471, 1867, 2767, 3271, 4999, 5647, 8599, 13099, 14107, 16231, 19687, 22171, 24799, 33547, 40099, 43591, 52951, 63211, 65371, 67567, 79087, 88951, 94099, 99391, 104827, 107599, 116131, 119047, 124987, 131071, 153499, 160231, 167107, 177691, 192307
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OFFSET
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1,1
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COMMENTS
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Primes of the form 36*A056115(k)+31.
Conjecture: 2^a(n)-1 is not prime; in other words, these primes are included in A054723.
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LINKS
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MATHEMATICA
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Select[Table[2 n^2 + 66 n + 31, {n, 800}], PrimeQ]
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PROG
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(Magma) [a: n in [1..500] | IsPrime(a) where a is 2*n^2+66*n+31];
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CROSSREFS
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Cf. similar sequences listed in A243888.
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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