Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 67.
A031565
Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 67.
Terms
- a(0) =4491a(1) =4499a(2) =4507a(3) =4519a(4) =4523a(5) =4539a(6) =4547a(7) =4567a(8) =4579a(9) =4583a(10) =4587a(11) =4591a(12) =4603a(13) =4639a(14) =4643a(15) =4651a(16) =4659a(17) =4663a(18) =4679a(19) =4691a(20) =4703a(21) =4707a(22) =4723a(23) =4731a(24) =4751a(25) =4759a(26) =17960a(27) =17992a(28) =18016a(29) =18048
External references
- oeis: A031565