A042717 Denominators of continued fraction convergents to sqrt(888).

1, 1, 4, 5, 294, 299, 1191, 1490, 87611, 89101, 354914, 444015, 26107784, 26551799, 105763181, 132314980, 7780032021, 7912347001, 31517073024, 39429420025, 2318423434474, 2357852854499, 9391981997971, 11749834852470, 690882403441231, 702632238293701

Offset

0,3

Links

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

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 298, 0, 0, 0, -1).

Formula

G.f.: -(x^2-x-1)*(x^4+5*x^2+1) / (x^8-298*x^4+1). - Colin Barker, Dec 22 2013

Mathematica

Denominator[Convergents[Sqrt[888], 30]] (* Vincenzo Librandi, Jan 27 2014 *)

Crossrefs

Cf. A042716, A040858.

Sequence in context: A051152 A042181 A368531 * A304286 A134463 A298938

Adjacent sequences: A042714 A042715 A042716 * A042718 A042719 A042720

Keyword

nonn,frac,easy

Author

N. J. A. Sloane.

Extensions

More terms from Colin Barker, Dec 22 2013

Status

approved