A042695 - OEIS

A042695

Denominators of continued fraction convergents to sqrt(877).

1, 1, 2, 3, 5, 13, 57, 70, 127, 578, 1283, 1861, 3144, 5005, 8149, 477647, 485796, 963443, 1449239, 2412682, 6274603, 27511094, 33785697, 61296791, 278972861, 619242513, 898215374, 1517457887, 2415673261, 3933131148, 230537279845, 234470410993

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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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 482652, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

FORMULA

a(n) = 482652*a(n-15) + a(n-30) for n>29. - Vincenzo Librandi, Jan 26 2014

MATHEMATICA

Denominator[Convergents[Sqrt[877], 30]] (* Harvey P. Dale, Dec 17 2011 *)

CROSSREFS

Cf. A040847, A042694.

Sequence in context: A064526 A261192 A103594 * A288943 A074394 A056162

Adjacent sequences: A042692 A042693 A042694 * A042696 A042697 A042698

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 26 2014

STATUS

approved

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