A042211 Denominators of continued fraction convergents to sqrt(631).

1, 8, 17, 25, 117, 142, 1395, 5722, 12839, 82756, 95595, 273946, 369541, 1013028, 1382569, 2395597, 3778166, 6173763, 28473218, 63120199, 154713616, 372547431, 527261047, 8808724183, 220745365622, 3540734574135, 3761479939757, 11063694453649, 25888868847055

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 97923150625997300071120, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).

Mathematica

Denominator[Convergents[Sqrt[631], 30]] (* Vincenzo Librandi, Jan 16 2014 *)

Crossrefs

Cf. A042210.

Sequence in context: A022390 A041831 A041122 * A290227 A396046 A277052

Adjacent sequences: A042208 A042209 A042210 * A042212 A042213 A042214

Keyword

nonn,frac,easy

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 16 2014

Status

approved