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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12448646853698, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 12448646853698*a(n-30) - a(n-60) for n>59. [Bruno Berselli, Nov 26 2013]
MATHEMATICA
Numerator[Convergents[Sqrt[772], 30]] (* Vincenzo Librandi, Nov 25 2013 *)
LinearRecurrence[{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12448646853698, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1}, {27, 28, 111, 139, 250, 389, 2195, 2584, 4779, 36037, 76853, 112890, 189743, 3338521, 3528264, 45677689, 49205953, 882178890, 931384843, 1813563733, 4558512309, 33723149896, 38281662205, 72004812101, 398305722710, 470310534811, 868616257521, 1338926792332, 4885396634517, 6224323426849, 340998861684363, 347223185111212, 1382668417017999, 1729891602129211, 3112560019147210, 4842451621276421, 27324818125529315, 32167269746805736, 59492087872335051, 448611884853151093, 956715857578637237, 1405327742431788330, 2362043600010425567, 41560068942609022969, 43922112542619448536, 568625419454042405401, 612547531996661853937, 10981933463397293922330, 11594480995393955776267, 22576414458791249698597, 56747309912976455173461, 419807583849626435912824, 476554893762602891086285, 896362477612229326999109, 4958367281823749526081830, 5854729759435978853080939, 10813097041259728379162769, 16667826800695707232243708, 60816577443346850075893893, 77484404244042557308137601}, 100] (* Harvey P. Dale, Dec 29 2021 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
STATUS
approved