Numbers k such that (k!/k#) * 2^k + 1 is prime, where n# = primorial numbers (A034386).

A108894

Numbers k such that (k!/k#) * 2^k + 1 is prime, where n# = primorial numbers (A034386).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =11a(4) =17a(5) =25a(6) =38a(7) =53a(8) =107a(9) =245a(10) =255a(11) =367a(12) =719a(13) =1077a(14) =2189a(15) =2853a(16) =3236a(17) =3511a(18) =3633a(19) =4531a(20) =4858a(21) =5422a(22) =7787a(23) =8319

External references