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 57.
A031555
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 57.
Terms
- a(0) =3251a(1) =3259a(2) =3267a(3) =3271a(4) =3291a(5) =3299a(6) =3307a(7) =3319a(8) =3323a(9) =3331a(10) =3343a(11) =3347a(12) =3359a(13) =3371a(14) =3383a(15) =3391a(16) =3403a(17) =3407a(18) =3411a(19) =3431a(20) =3459a(21) =3463a(22) =3467a(23) =3479a(24) =13000a(25) =13024a(26) =13056a(27) =13088a(28) =13096a(29) =13120
External references
- oeis: A031555