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A041961 Denominators of continued fraction convergents to sqrt(503). 2
1, 2, 5, 7, 152, 159, 470, 1099, 48826, 98751, 246328, 345079, 7492987, 7838066, 23169119, 54176304, 2406926495, 4868029294, 12142985083, 17011014377, 369374287000, 386385301377, 1142144889754, 2670675080885, 118651848448694, 239974371978273, 598600592405240 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,49296,0,0,0,0,0,0,0,-1).

FORMULA

G.f.: -(x^14 -2*x^13 +5*x^12 -7*x^11 +152*x^10 -159*x^9 +470*x^8 -1099*x^7 -470*x^6 -159*x^5 -152*x^4 -7*x^3 -5*x^2 -2*x -1) / (x^16 -49296*x^8 +1). - Colin Barker, Nov 28 2013

MATHEMATICA

Denominator[Convergents[Sqrt[503], 30]] (* Vincenzo Librandi, Dec 28 2013 *)

CROSSREFS

Cf. A041960, A040480.

Sequence in context: A103056 A041445 A265815 * A242169 A058854 A006275

Adjacent sequences:  A041958 A041959 A041960 * A041962 A041963 A041964

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Colin Barker, Nov 28 2013

STATUS

approved

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Last modified August 1 10:13 EDT 2021. Contains 346385 sequences. (Running on oeis4.)