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A067662 Numbers n such that n^2+1 and n^4+1 are primes. +0
1
1, 2, 4, 6, 16, 20, 24, 54, 56, 74, 90, 160, 180, 204, 210, 340, 430, 436, 466, 556, 584, 690, 760, 930, 936, 966, 986, 1144, 1150, 1246, 1406, 1434, 1586, 1644, 1700, 1824, 1850, 1870, 1910, 2074, 2126, 2224, 2260, 2266, 2336, 2360, 2536, 2604, 2646, 2676 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Intersection of A000068 and A005574.

Sequence in context: A100361 A069654 A000068 this_sequence A001774 A053285 A078148

Adjacent sequences: A067659 A067660 A067661 this_sequence A067663 A067664 A067665

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 23 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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