A042899 Denominators of continued fraction convergents to sqrt(981).

1, 3, 25, 28, 53, 81, 134, 215, 349, 913, 1262, 2175, 33887, 408819, 851525, 5517969, 11887463, 148167525, 2234400338, 2382567863, 4616968201, 11616504265, 16233472466, 27849976731, 44083449197, 71933425928, 116016875125, 187950301053, 1619619283549

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 316141343972498, 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, 0, 0, -1).

Mathematica

Denominator[Convergents[Sqrt[981], 30]] (* Vincenzo Librandi, Feb 01 2014 *)

Crossrefs

Cf. A042898, A040949.

Sequence in context: A370416 A304480 A129599 * A266702 A264937 A354725

Adjacent sequences: A042896 A042897 A042898 * A042900 A042901 A042902

Keyword

nonn,frac,easy

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Feb 01 2014

Status

approved