id:A091648 - OEIS Search Results

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Decimal expansion of ArcCosh[sqrt(2)], the inflection point of Sech[x].

+0
4

8, 8, 1, 3, 7, 3, 5, 8, 7, 0, 1, 9, 5, 4, 3, 0, 2, 5, 2, 3, 2, 6, 0, 9, 3, 2, 4, 9, 7, 9, 7, 9, 2, 3, 0, 9, 0, 2, 8, 1, 6, 0, 3, 2, 8, 2, 6, 1, 6, 3, 5, 4, 1, 0, 7, 5, 3, 2, 9, 5, 6, 0, 8, 6, 5, 3, 3, 7, 7, 1, 8, 4, 2, 2, 2, 0, 2, 6, 0, 8, 7, 8, 3, 3, 7, 0, 6, 8, 9, 1, 9, 1, 0, 2, 5, 6, 0, 4, 2, 8, 5, 6 (list; cons; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Asymptotic growth constant in the exponent for the number of spanning trees on the 2 X infinity strip on the square lattice. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 14 2006`
	LINKS	`Eric Weisstein's World of Mathematics, Hyperbolic Secant` `Eric Weisstein's World of Mathematics, Universal Parabolic Constant` `R. Shrock and F. Y. Wu, Spanning trees on graphs and lattices in d dimensions, J Phys A: Math Gen 33 (2000) 3881-3902`
	FORMULA	`ln(1 + sqrt(2)) - Jonathan Sondow (jsondow(AT)alumni.princeton.edu), Mar 15 2005` `(1/2)ln(3+2sqrt(2)) - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 14 2006`
	EXAMPLE	`0.88137358...`
	CROSSREFS	`Cf. A103710, A103711, A103712.` `Sequence in context: A056194 A110940 A141134 this_sequence A135707 A021923 A065465` `Adjacent sequences: A091645 A091646 A091647 this_sequence A091649 A091650 A091651`
	KEYWORD	`nonn,cons,easy`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Jan 24, 2004`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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