A041928 Numerators of continued fraction convergents to sqrt(487).

22, 309, 331, 971, 4215, 5186, 9401, 33389, 76179, 414284, 490463, 3357062, 3847525, 7204587, 155143852, 162348439, 317492291, 2067302185, 2384794476, 13991274565, 30367343606, 105093305383

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 103812147681136, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

Formula

a(n) = 103812147681136*a(n-28) - a(n-56) for n>55. [Bruno Berselli, Nov 12 2013]

Mathematica

Numerator[Convergents[Sqrt[487], 30]] (* Vincenzo Librandi, Nov 12 2013 *)

Crossrefs

Cf. A041929.

Sequence in context: A003468 A120051 A357034 * A028054 A100789 A028038

Adjacent sequences: A041925 A041926 A041927 * A041929 A041930 A041931

Keyword

nonn,cofr,frac,easy,less

Author

N. J. A. Sloane.

Status

approved