login
This site is supported by donations to The OEIS Foundation.

 

Logo


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

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 20 08:44 EST 2019. Contains 320325 sequences. (Running on oeis4.)