

A101789


8n1 such that 4n1 and 8n1 are primes.


2



7, 23, 47, 167, 263, 359, 383, 479, 503, 719, 839, 863, 887, 983, 1319, 1367, 1439, 1487, 1823, 2039, 2063, 2207, 2447, 2879, 2903, 2999, 3023, 3119, 3167, 3623, 3863, 4007, 4079, 4127, 4679, 4703, 4799, 4919, 5087, 5399, 5639, 5807, 5879, 5927, 6047
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OFFSET

1,1


LINKS



EXAMPLE

4*11=3 and 8*11 = 7 are primes, so the first entry is 7.


MATHEMATICA

Select[Prime[Range[800]], Mod[#, 8]==7&&PrimeQ[(#1)/2]&] (* Harvey P. Dale, Jan 31 2012 *)


CROSSREFS



KEYWORD

easy,nonn


AUTHOR

Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 16 2004


STATUS

approved



