A201602 Primes of the form 7n^2 + 1.

29, 113, 449, 701, 1009, 1373, 2269, 2801, 3389, 4733, 6301, 8093, 13553, 14813, 23549, 30493, 32369, 34301, 38333, 40433, 42589, 49393, 56701, 64513, 70001, 78653, 81649, 84701, 100801, 114689, 125693, 137201, 149213, 161729, 166013

Offset: 1

Author

Vincenzo Librandi, Dec 03 2011

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Programs

Magma

[a: n in [0..600] | IsPrime(a) where a is 7*n^2+1];

Mathematica

Select[Table[7n^2+1,{n,0,900}],PrimeQ]