Numbers k such that the k-th semiprime == 6 (mod k).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =10a(6) =57a(7) =59a(8) =69a(9) =6914a(10) =613376a(11) =613403a(12) =613431a(13) =613432a(14) =613436a(15) =613447a(16) =613453a(17) =613483a(18) =613484a(19) =613507a(20) =613511a(21) =613513a(22) =613516a(23) =613531a(24) =613535a(25) =613541a(26) =613547a(27) =613579a(28) =613580a(29) =613597