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A041870
Numerators of continued fraction convergents to sqrt(457).
2
21, 43, 64, 107, 171, 962, 2095, 28197, 30292, 119073, 149365, 716533, 865898, 1582431, 7195622, 8778053, 33529781, 42307834, 583531623, 1209371080, 6630387023, 7839758103, 14470145126, 22309903229
OFFSET
0,1
LINKS
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, 118179903168, 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) = 118179903168*a(n-25) + a(n-50) for n>49. [Bruno Berselli, Nov 11 2013]
MATHEMATICA
Numerator[Convergents[Sqrt[457], 30]] (* Vincenzo Librandi, Nov 11 2013 *)
CROSSREFS
Cf. A041871.
Sequence in context: A043947 A335477 A263877 * A041868 A135391 A118569
KEYWORD
nonn,cofr,frac,easy,less
AUTHOR
STATUS
approved