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A006280 Partial quotients in continued fraction expansion of Cahen's constant.
(Formerly M3372)
5
0, 1, 1, 1, 4, 9, 196, 16641, 639988804, 177227652025317609, 72589906463585427805281295977816196 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

Shifted squares of denominators of convergents to Cahen's constant: a(n) = A006279(n-2)^2 for n > 1. - Jonathan Sondow, Aug 20 2014

REFERENCES

J. L. Davison, Jeffrey Shallit, Continued Fractions for Some Alternating Series, Monatsh. Math., 111 (1991), 119-126.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..10.

CROSSREFS

Cf. A006279, A006281.

Sequence in context: A067072 A080438 A029999 * A290158 A202463 A286322

Adjacent sequences:  A006277 A006278 A006279 * A006281 A006282 A006283

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 17 04:26 EDT 2019. Contains 324183 sequences. (Running on oeis4.)