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A103776 Numbers n such that n and 8*n^2+4*n+1 are primes. +0
2
2, 7, 11, 17, 41, 61, 101, 167, 227, 257, 281, 337, 347, 367, 397, 401, 461, 467, 487, 541, 571, 587, 601, 631, 641, 647, 661, 691, 701, 761, 857, 947, 971, 977, 997, 1021, 1087, 1237, 1277, 1291, 1381, 1451, 1481, 1607, 1621, 1627, 1667, 1697, 1787, 1811 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A102083.

Sequence in context: A165810 A109417 A045372 this_sequence A040154 A166862 A105881

Adjacent sequences: A103773 A103774 A103775 this_sequence A103777 A103778 A103779

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Feb 15 2005

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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