A154547 - OEIS

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

(list; graph; refs; listen; history; text; internal format)

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