Primes p such that p+6, p+12, p+18, p+20, p+26, p+32, and p+38 are all primes.

Terms

a(0) =41a(1) =344231a(2) =1464251a(3) =9646271a(4) =48691151a(5) =53544461a(6) =58182011a(7) =68632121a(8) =74656931a(9) =74752571a(10) =92195381a(11) =122898851a(12) =164527151a(13) =204214541a(14) =224671901a(15) =233766041a(16) =234327701a(17) =269106731a(18) =349373891a(19) =396416711a(20) =412572851a(21) =448517501a(22) =513644381a(23) =530427071a(24) =559946021