Primes of the form k!9 + 1, where k!9 is the nonuple factorial number (A114806).

A288371

Primes of the form k!9 + 1, where k!9 is the nonuple factorial number (A114806).

Terms

    a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =23a(6) =37a(7) =53a(8) =71a(9) =113a(10) =137a(11) =163a(12) =191a(13) =757a(14) =2161a(15) =2801a(16) =51521a(17) =1418561a(18) =4093601a(19) =42456961a(20) =69509441a(21) =105616001a(22) =2420046721a(23) =9160905601

External references