Numbers k > 0 such that either 3*k+4, k-2, k+2, n+k or 3*k+5, k-1, k+1, k+5 are all primes.

Terms

a(0) =6a(1) =9a(2) =12a(3) =18a(4) =42a(5) =69a(6) =102a(7) =312a(8) =348a(9) =459a(10) =642a(11) =858a(12) =1089a(13) =1302a(14) =1428a(15) =1482a(16) =1665a(17) =2139a(18) =2238a(19) =2685a(20) =2688a(21) =3255a(22) =3462a(23) =3465a(24) =3528a(25) =3849a(26) =4002a(27) =4788a(28) =5415a(29) =6825