Numbers n such that n!*3^n - 1 is prime.

Terms

a(0) =1a(1) =2a(2) =12a(3) =20a(4) =38a(5) =45a(6) =46a(7) =105a(8) =117a(9) =143a(10) =214a(11) =1835a(12) =2931a(13) =7703a(14) =11542a(15) =19225