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Numbers n with property that 6n-1 is in A053182.
1

%I #5 Oct 15 2013 03:39:51

%S 1,3,7,10,12,15,17,22,28,29,49,64,113,117,124,127,129,138,140,143,152,

%T 182,183,194,197,199,203,229,238,248,260,264,285,302,308,322,329,355,

%U 379,385,390,402,444,455,465,493,495,502,507,523,537,542,568,575,582

%N Numbers n with property that 6n-1 is in A053182.

%o (PARI) isok(n) = isprime(p=6*n-1) && isprime(p^2+p+1); \\ _Michel Marcus_, Oct 15 2013

%Y Cf. A053182.

%K nonn

%O 1,2

%A _Zak Seidov_, Nov 10 2008