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A155010
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Primes p such that (p-a)*(p+a)-+a*p and (p-b)*(p+b)-+b*p are primes, a=2,b=3.
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0
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7, 37, 587, 28703, 35677, 36857, 99367, 326707, 361687, 578167, 613573, 619007, 656407, 688783, 702203, 713467, 874823, 922027, 940573, 1045763, 1057907, 1244687, 1371157, 1419697, 1555187, 1665767, 1687187, 1687327, 1799453
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[(p-2)*(p+2)-2*p]&&PrimeQ[(p-2)*(p+2)+2*p]&&PrimeQ[(p-3)*(p+3)-3*p]&&PrimeQ[(p-3)*(p+3)+3*p], AppendTo[lst, p]], {n, 9!}]; lst
Select[Prime[Range[200000]], AllTrue[Flatten[{(#-2)(#+2)+{2#, -2#}, (#-3)(#+3)+ {3#, -3#}}], PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Apr 26 2015 *)
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CROSSREFS
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Cf. A125272, A053184, A038872, A141158, A038615, A098058, A038936, A089270, A140559, A154939, A155006, A155007, A155008, A155009
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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