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A041792
Numerators of continued fraction convergents to sqrt(417).
2
20, 41, 102, 143, 245, 388, 2185, 9128, 11313, 144884, 156197, 769672, 4004557, 4774229, 8778786, 13553015, 35884816, 85322647, 3448790696, 6982904039, 17414598774, 24397502813, 41812101587, 66209604400
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, 170645294, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
a(n) = 170645294*a(n-18) - a(n-36) for n>35. [Bruno Berselli, Nov 09 2013]
MATHEMATICA
Numerator[Convergents[Sqrt[417], 30]] (* Vincenzo Librandi, Nov 09 2013 *)
CROSSREFS
Cf. A041793.
Sequence in context: A195148 A171389 A038639 * A041794 A041796 A041798
KEYWORD
nonn,cofr,frac,easy,less
AUTHOR
STATUS
approved