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A179907 Numerators in the approximation of sqrt(2) satisfying the recurrence: a(n)= [a(n-1)*a(n-2)+2]/[a(n-1)+a(n-2)] with a(1)=a(2)=1 1
1, 1, 3, 7, 41, 577, 47321, 54608393, 5168247530883, 564459384575477049359 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Cf. A179823

Sequence in context: A018971 A006383 A181148 * A080581 A086397 A229941

Adjacent sequences:  A179904 A179905 A179906 * A179908 A179909 A179910

KEYWORD

frac,nonn

AUTHOR

Mark Dols, Aug 01 2010

STATUS

approved

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Last modified November 26 07:49 EST 2020. Contains 338632 sequences. (Running on oeis4.)