A042308 Numerators of continued fraction convergents to sqrt(681).

26, 261, 548, 1357, 1905, 3262, 8429, 53836, 385281, 1209679, 2804639, 4014318, 67033727, 71048045, 209129817, 698437496, 5098192289, 31287591230, 67673374749, 98960965979, 166634340728, 432229647435

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, 21486332006830, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

Mathematica

Numerator[Convergents[Sqrt[681], 30]] (* Vincenzo Librandi, Nov 21 2013 *)

Crossrefs

Cf. A042309.

Sequence in context: A126547 A136922 A136921 * A378848 A251673 A059744

Adjacent sequences: A042305 A042306 A042307 * A042309 A042310 A042311

Keyword

nonn,cofr,frac,easy

Author

N. J. A. Sloane.

Status

approved