A144974 Centered heptagonal prime numbers.

43, 71, 197, 463, 547, 953, 1471, 1933, 2647, 2843, 3697, 4663, 5741, 8233, 9283, 10781, 11173, 12391, 14561, 18397, 20483, 29303, 29947, 34651, 37493, 41203, 46691, 50821, 54251, 56897, 57793, 65213, 68111, 72073, 76147, 84631, 89041

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Sep 27 2008

Keywords

• nonn

Links

• Wikipedia, Centered heptagonal prime number

Programs

Mathematica

lst={};Do[p=(7*n^2-7*n+2)/2;If[PrimeQ[p],AppendTo[lst,p]],{n,6!}];lst