A379531 Decimal expansion of (3*sqrt(6) - 7)*Pi/3.

3, 6, 4, 9, 1, 6, 1, 2, 2, 5, 9, 5, 0, 0, 0, 3, 5, 0, 1, 8, 4, 7, 1, 6, 9, 3, 0, 3, 7, 3, 8, 6, 5, 0, 7, 2, 3, 4, 3, 5, 0, 2, 0, 7, 3, 5, 0, 9, 3, 0, 7, 0, 2, 3, 0, 0, 0, 1, 3, 3, 5, 9, 1, 8, 2, 0, 1, 5, 4, 6, 5, 9, 7, 4, 3, 6, 4, 4, 9, 4, 2, 7, 3, 4, 3, 0, 6, 9, 2, 1, 8, 4, 9, 4, 2, 6, 8, 1, 9, 1

Offset

0,1

Comments

Lower bound to the volume of the Meisser's tetrahedral analog of the Reuleaux triangle.

References

G. D. Chakerian and H. Groemer, Convex bodies of constant width, Convexity and Its Applications, ed. P. M. Gruber and J. M. Wills, Birkhäuser, 1983, pp. 49-96; MR85f:52001.

Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 8.10, p. 514.

Links

Table of n, a(n) for n=0..99.

G. D. Chakerian, Sets of constant width, Pacific J. Math. 19 (1966) 13-21; MR 34 #4986. See p. 14.

Michael I. Shamos, A catalog of the real numbers, (2007). See p. 230.

Example

0.3649161225950003501847169303738650723435020735...

Mathematica

RealDigits[(3Sqrt[6]-7)Pi/3, 10, 100][[1]]

Crossrefs

Cf. A000796, A010464, A010507, A019670.

Sequence in context: A248176 A100000 A083682 * A021278 A372789 A336761

Adjacent sequences: A379528 A379529 A379530 * A379532 A379533 A379534

Keyword

nonn,cons

Author

Stefano Spezia, Dec 24 2024

Status

approved