A042561 Denominators of continued fraction convergents to sqrt(809).

1, 2, 7, 9, 70, 149, 219, 1463, 3145, 10898, 123023, 1364151, 4215476, 9795103, 62986094, 72781197, 208548488, 1532620613, 1741169101, 6756127916, 15253424933, 860947924164, 1737149273261, 6072395743947, 7809545017208, 60739210864403

Offset

0,2

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, 867704052080, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Mathematica

Denominator[Convergents[Sqrt[809], 30]] (* Harvey P. Dale, Mar 25 2013 *)

Crossrefs

Cf. A040780, A042560.

Sequence in context: A041073 A079942 A272412 * A252661 A362858 A041453

Adjacent sequences: A042558 A042559 A042560 * A042562 A042563 A042564

Keyword

nonn,frac,easy

Author

N. J. A. Sloane.

Extensions

More terms from Vincenzo Librandi, Jan 25 2014

Status

approved