The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A042880 Numerators of continued fraction convergents to sqrt(972). 2
 31, 156, 187, 343, 530, 4053, 24848, 28901, 111551, 140452, 2077879, 2218331, 8732872, 10951203, 74440090, 532031833, 606471923, 1138503756, 1744975679, 9863382151, 613274669041, 3076236727356 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 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, 19726764302, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1). FORMULA a(n) = 19726764302*a(n-20) - a(n-40) for n > 39. [Bruno Berselli, Dec 08 2013] MATHEMATICA Numerator[Convergents[Sqrt[972], 30]] (* Vincenzo Librandi, Dec 08 2013 *) CROSSREFS Cf. A042881. Sequence in context: A104049 A176922 A134553 * A042882 A045160 A142906 Adjacent sequences: A042877 A042878 A042879 * A042881 A042882 A042883 KEYWORD nonn,cofr,frac,easy AUTHOR N. J. A. Sloane STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 11 21:32 EDT 2024. Contains 375073 sequences. (Running on oeis4.)