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 47.
A031545
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 47.
Terms
- a(0) =2211a(1) =2227a(2) =2231a(3) =2239a(4) =2243a(5) =2251a(6) =2263a(7) =2267a(8) =2283a(9) =2287a(10) =2311a(11) =2339a(12) =2347a(13) =2351a(14) =2363a(15) =2371a(16) =2383a(17) =2399a(18) =8840a(19) =8864a(20) =8872a(21) =8896a(22) =8936a(23) =8960a(24) =9032a(25) =9056a(26) =9088a(27) =9160a(28) =9256a(29) =9320
External references
- oeis: A031545