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 63.
A031561
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 63.
Terms
- a(0) =3971a(1) =4003a(2) =4007a(3) =4019a(4) =4027a(5) =4039a(6) =4051a(7) =4059a(8) =4079a(9) =4083a(10) =4091a(11) =4099a(12) =4111a(13) =4127a(14) =4131a(15) =4139a(16) =4151a(17) =4159a(18) =4183a(19) =4207a(20) =4211a(21) =4219a(22) =4223a(23) =15880a(24) =15936a(25) =15944a(26) =15968a(27) =15976a(28) =16000a(29) =16064
External references
- oeis: A031561