1,2

H. T. Croft, K. J. Falconer and R. K. Guy, Unsolved Problems in Geometry, C9.

R. B. Hughes and M. R. Anderson, Simplexity of the cube, Discrete Mathematics, 158 (1996) 99-150, esp. p. 100.

C. Zong, What is known about unit cubes, Bull. Amer. Math. Soc., 42 (2005), 181-211.

Mark Haiman, "A simple and relatively efficient triangulation of the n-cube", Discrete Comput. Geometry 6 (1991), 287-289.

Warren D. Smith, "Lower bounds for triangulations of the N-cube," 1994.

Gunter M. Ziegler, Lectures on Polytopes, Revised First Edn., Graduate Texts in Mathematics, Springer, 1994, p. 147.

5522 <= a(8) <= 11944 [Haiman, Ziegler]. For large n, a method due to Smith, using volume estimates in hyperbolic geometry, yields the best lower bounds on a(n) so far. - Jonathan Vos Post (jvospost3(AT)gmail.com), Jul 13 2005

Cf. A019502, A019504.

Sequence in context: A124551 A005157 A019502 this_sequence A019504 A005163 A006116

Adjacent sequences: A019500 A019501 A019502 this_sequence A019504 A019505 A019506

nonn,hard,nice

N. J. A. Sloane (njas(AT)research.att.com).