Numbers k such that 2^k + 3*k is prime.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =11a(5) =13a(6) =35a(7) =45a(8) =47a(9) =57a(10) =87a(11) =183a(12) =325a(13) =367a(14) =447a(15) =809a(16) =1157a(17) =2789a(18) =5775a(19) =14829a(20) =20687a(21) =46463a(22) =62491a(23) =92147a(24) =128745