Numbers k such that k, 2*k+1, 3*k+2 are primes.

Terms

a(0) =3a(1) =5a(2) =23a(3) =29a(4) =83a(5) =89a(6) =173a(7) =233a(8) =239a(9) =293a(10) =419a(11) =659a(12) =953a(13) =1013a(14) =1223a(15) =1409a(16) =1559a(17) =1583a(18) =1889a(19) =2003a(20) =2129a(21) =2339a(22) =2549a(23) =2693a(24) =2939a(25) =3359a(26) =3389a(27) =3593a(28) =3803a(29) =4349