A105656 Numbers n such that p1=2n+3, p2=4n+5, p3=6n+7, p4=8n+9, p5=10n+11, p6=12n+13 and p7=14n+15 are all prime.

256409, 4112429, 11120339, 12231449, 13243229, 31435739, 46892264, 49798979, 69909839, 98237474, 125994749, 145989164, 171741989, 201038564, 205739414, 229298684, 232560509, 253539929, 259765694, 261519719, 292721519, 296504669

Offset: 1

Author

Zak Seidov, Apr 16 2005

Keywords

• nonn

Crossrefs

Cf. A005382, A005383, A105610, A105652 - A105657.

Programs

Mathematica

apQ[n_]:=And@@PrimeQ[Table[n*i+i+1,{i,2,14,2}]]; Select[Range[ 300000000],apQ] (* Harvey P. Dale, Jan 02 2013 *)