Search: id:A056909
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%I A056909
%S A056909 7,31,127,367,631,967,1231,3727,4231,6247,7927,8287,11887,17167,21031,
%T A056909 22807,30631,34231,39607,48847,72367,108247,109567,126031,160807,
%U A056909 185767,198031,231367,235231,261127,265231,279847,290527,323767,354031
%N A056909 Primes of the form k^2+6.
%C A056909 a(n) mod 120 = 7 or 31 for all n
%F A056909 a(n) =36*A056910(n)^2+12*A056910(n)+7
%e A056909 a(2)=127 since 11^2+6=127 which is prime
%t A056909 Intersection[Table[n^2+6,{n,0,10^2}],Prime[Range[9*10^3]]] ...or... For[i=6,
               i<=6,a={};Do[If[PrimeQ[n^2+i],AppendTo[a,n^2+i]],{n,0,100}];Print["n^2+",
               i,",",a];i++ ] - Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 
               29 2008
%Y A056909 Cf. A002496, A056899, A049423, A005473, A056905.
%Y A056909 Sequence in context: A002588 A036280 A153005 this_sequence A002147 A083420 
               A036282
%Y A056909 Adjacent sequences: A056906 A056907 A056908 this_sequence A056910 A056911 
               A056912
%K A056909 nonn
%O A056909 1,1
%A A056909 Henry Bottomley (se16(AT)btinternet.com), Jul 07 2000

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