A154547 Sophie Germain primes of A154276.

902501, 10824101, 19096901, 26832401, 40322501, 166926401, 255360401, 309760001, 335622401, 338928101, 404814401, 412090001, 430562501, 441840401, 651270401, 702780101, 885062501, 1006792901, 1029768101, 1160764901

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Mathematica

lst={}; Do[If[PrimeQ[p=81*n^2-72*n+17], If[PrimeQ[2*p+1], AppendTo[lst, p]]], {n, 8!}]; lst

Crossrefs

Cf. A154276, A154546

Sequence in context: A032429 A184456 A190391 * A357494 A209208 A209209

Adjacent sequences: A154544 A154545 A154546 * A154548 A154549 A154550

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Jan 11 2009

Status

approved