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 15.
A031513
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 15.
Terms
- a(0) =227a(1) =239a(2) =243a(3) =251a(4) =263a(5) =267a(6) =271a(7) =283a(8) =287a(9) =904a(10) =928a(11) =1000a(12) =1096a(13) =1120a(14) =1152a(15) =2031a(16) =2103a(17) =2175a(18) =2235a(19) =2247a(20) =2319a(21) =2391a(22) =2463a(23) =2523a(24) =2595a(25) =3608a(26) =3672a(27) =3736a(28) =3928a(29) =3992
External references
- oeis: A031513