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 81.
A031579
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 81.
Terms
- a(0) =6563a(1) =6571a(2) =6599a(3) =6607a(4) =6611a(5) =6619a(6) =6647a(7) =6651a(8) =6659a(9) =6667a(10) =6679a(11) =6691a(12) =6703a(13) =6719a(14) =6727a(15) =6763a(16) =6779a(17) =6791a(18) =6803a(19) =6819a(20) =6823a(21) =6827a(22) =6847a(23) =6859a(24) =6863a(25) =6871a(26) =6883a(27) =6887a(28) =26248a(29) =26272
External references
- oeis: A031579