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A243891
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Primes of the form 2*n^2 + 62*n + 29.
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2
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233, 389, 653, 953, 1061, 1289, 1409, 2069, 2213, 4253, 4649, 5273, 6869, 8933, 9209, 10061, 10949, 13829, 15569, 16661, 17033, 17789, 24413, 26693, 28109, 32573, 35729, 36269, 37361, 42473, 44249, 46061, 48533, 51713, 52361, 55661, 56333, 57689, 59753
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OFFSET
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1,1
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COMMENTS
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Subsequence of A040117.
Conjecture: except 4253, 2^a(n) - 1 is not prime; in other words, these primes are included in A054723.
2*a(n) + 903 is a square. - Vincenzo Librandi, Jun 29 2016
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 1..1000
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MATHEMATICA
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Select[Table[2 n^2 + 62 n + 29, {n, 200}], PrimeQ]
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PROG
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(Magma) [a: n in [1..200] | IsPrime(a) where a is 2*n^2+62*n+29];
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CROSSREFS
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Cf. A040117.
Cf. similar sequences listed in A243888.
Sequence in context: A141280 A097446 A154621 * A142644 A302004 A308786
Adjacent sequences: A243888 A243889 A243890 * A243892 A243893 A243894
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KEYWORD
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nonn,easy
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AUTHOR
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Vincenzo Librandi, Jun 16 2014
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STATUS
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approved
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