Numbers k such that (3^j)*k + 1 are primes for j=0 to 6.

Terms

a(0) =1197630a(1) =20402760a(2) =25451790a(3) =29445850a(4) =43830780a(5) =44898210a(6) =52214050a(7) =76355370a(8) =84234990a(9) =88337550a(10) =99495550a(11) =123074070a(12) =135740430a(13) =155333920a(14) =156954700a(15) =165098290a(16) =216858460a(17) =218715490a(18) =229066110a(19) =232590400a(20) =234109120a(21) =236536510