A201305 Primes of the form 10n^3+7.

7, 17, 277, 647, 7297, 10007, 21977, 33757, 68597, 106487, 138247, 156257, 196837, 359377, 466567, 506537, 640007, 795077, 973367, 1574647, 1951127, 2621447, 5314417, 5513687, 6141257, 10612087, 11910167, 12950297, 14815447, 19066247

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..6000

Mathematica

Select[Table[10n^3+7, {n, 0, 7000}], PrimeQ]

Prog

(Magma) [a: n in [0..300] | IsPrime(a) where a is 10*n^3+7];

Crossrefs

Sequence in context: A140122 A092240 A110120 * A053584 A077715 A089563

Adjacent sequences: A201302 A201303 A201304 * A201306 A201307 A201308

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 30 2011

Status

approved