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A169800

Decimal expansion of 2/log(1+sqrt(2)).

2, 2, 6, 9, 1, 8, 5, 3, 1, 4, 2, 1, 3, 0, 2, 1, 9, 6, 8, 1, 1, 4, 4, 9, 0, 8, 1, 0, 3, 0, 6, 5, 7, 2, 4, 7, 5, 7, 2, 5, 9, 8, 1, 5, 8, 5, 5, 0, 4, 0, 0, 1, 3, 5, 0, 0, 5, 0, 6, 5, 8, 2, 2, 2, 3, 6, 0, 2, 7, 8, 6, 5, 5, 7, 9, 3, 7, 6, 8, 8, 2, 0, 7, 6, 5, 4, 4, 3, 5, 4, 9, 1, 0, 1, 2, 5, 1, 8, 9 (list; constant; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Critical temperature for two-dimensional Ising model.`
	LINKS	`G. C. Greubel, Table of n, a(n) for n = 1..10000` `M. Richey, The evolution of Markov chain Monte Carlo Methods, Amer. Math. Monthly, 117 (No. 5, 2010), 383-413.` `Index entries for transcendental numbers`
	EXAMPLE	`2.2691853142130219681144908103065724757259815855040013500506...`
	MATHEMATICA	`RealDigits[2/Log[1 + Sqrt[2]], 10, 100][[1]] (* G. C. Greubel, Oct 02 2018 *)`
	PROG	`(PARI) 2/log(1+sqrt(2)) \\ Charles R Greathouse IV, Mar 25 2014` `(Magma) SetDefaultRealField(RealField(100)); 2/Log(1+Sqrt(2)); // G. C. Greubel, Oct 02 2018`
	CROSSREFS	`Cf. A091648 (log(1 + sqrt(2))).` `Sequence in context: A346201 A131553 A277510 * A094485 A331988 A242978` `Adjacent sequences: A169797 A169798 A169799 * A169801 A169802 A169803`
	KEYWORD	`nonn,cons`
	AUTHOR	`N. J. A. Sloane, May 18 2010`
	STATUS	`approved`

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Last modified September 11 09:20 EDT 2024. Contains 375814 sequences. (Running on oeis4.)