Primes of the form 2^i*3^j - (i+j) with i, j >= 0.

Terms

a(0) =2a(1) =5a(2) =7a(3) =43a(4) =67a(5) =103a(6) =157a(7) =281a(8) =503a(9) =641a(10) =1451a(11) =3061a(12) =4597a(13) =6553a(14) =8179a(15) =10357a(16) =15541a(17) =34981a(18) =78721a(19) =209939a(20) =524269a(21) =1062869a(22) =2097131a(23) =13436909a(24) =25509151a(25) =28311529a(26) =63700969a(27) =113246183a(28) =153054989a(29) =516560633