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 42.
A031540
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 42.
Terms
- a(0) =1766a(1) =1774a(2) =1782a(3) =1814a(4) =1822a(5) =1826a(6) =1838a(7) =1842a(8) =1858a(9) =1874a(10) =1878a(11) =1886a(12) =1894a(13) =1922a(14) =1926a(15) =1934a(16) =3972a(17) =3981a(18) =3993a(19) =4038a(20) =4101a(21) =4107a(22) =4116a(23) =4143a(24) =4161a(25) =4179a(26) =4188a(27) =4197a(28) =4209a(29) =4254
External references
- oeis: A031540