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A242721 Decimal expansion of the positive real root of 3*x^4 - x^3 - x^2 - 2, a constant related to quasi-isometric mappings. 0
1, 1, 1, 4, 3, 0, 5, 5, 5, 0, 8, 4, 8, 6, 9, 0, 0, 0, 2, 3, 0, 1, 6, 9, 3, 5, 8, 4, 9, 4, 4, 8, 2, 1, 1, 3, 4, 8, 2, 7, 3, 7, 8, 2, 5, 6, 3, 1, 9, 1, 7, 7, 4, 2, 5, 5, 7, 0, 0, 9, 1, 8, 1, 3, 7, 4, 3, 5, 0, 7, 0, 2, 7, 9, 3, 3, 4, 4, 4, 3, 4, 3, 0, 9, 6, 1, 2, 9, 5, 5, 1, 9, 1, 0, 2, 2, 8, 9, 3, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,4

REFERENCES

Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 7.4, p. 466.

LINKS

Table of n, a(n) for n=1..100.

Julian Gevirtz, Injectivity of quasi-isometric mappings of balls, Proc. Amer. Math. Soc. 85 (1982), 345-349.

EXAMPLE

1.1143055508486900023...

MATHEMATICA

RealDigits[Root[3*x^4 - x^3 - x^2 - 2, x, 2], 10, 100] // First

CROSSREFS

Sequence in context: A330392 A204694 A304030 * A251610 A021703 A321209

Adjacent sequences:  A242718 A242719 A242720 * A242722 A242723 A242724

KEYWORD

nonn,cons

AUTHOR

Jean-François Alcover, May 21 2014

STATUS

approved

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Last modified September 20 20:02 EDT 2020. Contains 337265 sequences. (Running on oeis4.)