296504669domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers 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.at n=21A105656Numbers n such that p1=2n+3, p2=4n+5, p3=6n+7, p4=8n+9, p5=10n+11, p6=12n+13, p7=14n+15 and p8=16n+17 are all prime.at n=4A105657Prime numbersat n=16073258