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 17.
A031515
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 17.
Terms
- a(0) =291a(1) =307a(2) =311a(3) =331a(4) =339a(5) =343a(6) =347a(7) =359a(8) =1160a(9) =1184a(10) =1192a(11) =1216a(12) =1248a(13) =1256a(14) =1280a(15) =1312a(16) =1344a(17) =1352a(18) =1376a(19) =1384a(20) =1408a(21) =1440a(22) =2607a(23) =2823a(24) =2895a(25) =2955a(26) =3039a(27) =3183a(28) =3243a(29) =4632
External references
- oeis: A031515