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 A244046 Decimal expansion of the maximal width of a Reuleaux triangle avoiding all vertices of the integer square lattice. 1
 1, 5, 4, 4, 9, 4, 1, 7, 0, 0, 3, 7, 1, 5, 9, 3, 1, 5, 4, 1, 8, 5, 0, 9, 6, 8, 3, 8, 4, 7, 0, 6, 2, 6, 5, 8, 0, 2, 4, 7, 3, 6, 0, 8, 2, 8, 4, 0, 0, 6, 7, 4, 1, 7, 4, 0, 8, 0, 5, 1, 5, 9, 4, 9, 4, 3, 7, 0, 0, 9, 9, 5, 7, 4, 2, 3, 0, 0, 6, 9, 8, 6, 0, 6, 6, 9, 0, 7, 3, 8, 5, 0, 8, 0, 6, 1, 7, 9, 7, 3, 6, 3, 9, 3, 7 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 8.10 Reuleaux triangle constants, p. 515. LINKS Table of n, a(n) for n=1..105. Eric Weisstein's MathWorld, Reuleaux Triangle Wikipedia, Reuleaux Triangle FORMULA Smallest positive root of 4*x^6 - 12*x^5 + x^4 + 22*x^3 - 14*x^2 - 4*x + 4. EXAMPLE 1.54494170037159315418509683847062658... MATHEMATICA w = Root[4*x^6 - 12*x^5 + x^4 + 22*x^3 - 14*x^2 - 4*x + 4, x, 3]; RealDigits[w, 10, 105] // First CROSSREFS Cf. A060708, A066666, A137615. Sequence in context: A357418 A303270 A340918 * A255332 A071419 A291069 Adjacent sequences: A244043 A244044 A244045 * A244047 A244048 A244049 KEYWORD nonn,cons AUTHOR Jean-François Alcover, Jun 18 2014 STATUS approved

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Last modified May 29 00:29 EDT 2024. Contains 372921 sequences. (Running on oeis4.)