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A133844 Decimal expansion of vertex angle A at which A B C-8 omega^3 is a maximum. 1
1, 4, 0, 9, 3, 5, 6, 2, 7, 0, 3, 5, 4, 6, 1, 9, 7, 0, 3, 6, 1, 1, 3, 6, 2, 9, 0, 8, 7, 4, 2, 3, 5, 9, 1, 0, 8, 1, 7, 1, 2, 1, 4, 5, 5, 0, 6, 4, 1, 4, 8, 6, 7, 9, 7, 5, 3, 8, 2, 7, 2, 3, 9, 5, 8, 9, 1, 8, 0, 0, 8, 1, 5, 5, 2, 0, 9, 7, 7, 5, 8, 7, 3, 5, 5, 9, 8, 5, 4, 9, 8, 6, 5, 8, 7, 2, 3, 9, 7, 8, 0, 9, 5, 5, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..105.

Eric Weisstein's World of Mathematics, Yff Conjecture

EXAMPLE

1.4093562703546197036...

MATHEMATICA

f[a_] := a^2*(Pi - 2*a) - 8*ArcCot[2*Cot[a] - Cot[2*a]]^3; RealDigits[ a /. FindRoot[f'[a] == 0, {a, 3/2}, WorkingPrecision -> 110], 10, 105] // First (* Jean-Fran├žois Alcover, Feb 07 2013, after Eric W. Weisstein *)

CROSSREFS

Cf. A133845.

Sequence in context: A305742 A199000 A200591 * A198238 A187377 A187155

Adjacent sequences:  A133841 A133842 A133843 * A133845 A133846 A133847

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Sep 26 2007

STATUS

approved

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Last modified April 19 10:39 EDT 2019. Contains 322255 sequences. (Running on oeis4.)