a(n) = p, the lesser of twin primes (p, q=p+2) such that p*q + p + q is prime.

Terms

a(0) =3a(1) =5a(2) =11a(3) =17a(4) =41a(5) =59a(6) =101a(7) =137a(8) =311a(9) =419a(10) =521a(11) =809a(12) =1019a(13) =1049a(14) =1151a(15) =1229a(16) =1319a(17) =1427a(18) =2111a(19) =2237a(20) =2267a(21) =3119a(22) =3329a(23) =3371a(24) =3539a(25) =4001a(26) =4049a(27) =4091a(28) =4217a(29) =4421