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A042559 Denominators of continued fraction convergents to sqrt(808). 2
1, 2, 5, 7, 40, 47, 87, 134, 221, 3007, 3228, 6235, 9463, 15698, 87953, 103651, 295255, 694161, 39168271, 79030703, 197229677, 276260380, 1578531577, 1854791957, 3433323534, 5288115491, 8721439025, 118666822816, 127388261841, 246055084657, 373443346498 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

a(n) = 39463526*a(n-18) - a(n-36) for n>35. - Vincenzo Librandi, Jan 25 2014

MATHEMATICA

Denominator[Convergents[Sqrt[808], 30]] (* Vincenzo Librandi, Jan 25 2014 *)

CROSSREFS

Cf. A040779, A042558.

Sequence in context: A028432 A019409 A123232 * A197222 A062645 A174259

Adjacent sequences:  A042556 A042557 A042558 * A042560 A042561 A042562

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 25 2014

STATUS

approved

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Last modified July 24 12:47 EDT 2021. Contains 346273 sequences. (Running on oeis4.)