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 25.
A031523
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 25.
Terms
- a(0) =627a(1) =631a(2) =643a(3) =647a(4) =659a(5) =679a(6) =683a(7) =691a(8) =699a(9) =719a(10) =727a(11) =2504a(12) =2536a(13) =2560a(14) =2656a(15) =2688a(16) =2720a(17) =2752a(18) =2784a(19) =2792a(20) =2816a(21) =2912a(22) =5631a(23) =5703a(24) =5835a(25) =5847a(26) =5919a(27) =5991a(28) =6051a(29) =6207
External references
- oeis: A031523