Numbers k such that binomial(6k, k) - 1 is prime.

Terms

a(0) =1a(1) =7a(2) =17a(3) =22a(4) =43a(5) =343a(6) =381a(7) =461a(8) =543a(9) =923a(10) =1045a(11) =1182a(12) =1486a(13) =1839a(14) =5643a(15) =8260a(16) =9009a(17) =10947a(18) =11793a(19) =15915a(20) =25151a(21) =50923a(22) =57095a(23) =59977a(24) =76513a(25) =83383