%N Number of simplices is middle-cut slicing of n-cube.
%H John F. Sallee, <a href="https://doi.org/10.1137/0605039">The middle-cut triangulations of the n-cube</a>. SIAM J. Algebraic Discrete Methods 5 (1984), no. 3, 407--419. MR0752044 (86c:05054).
%Y Other sequences dealing with different ways to attack this problem. They give further references: A019502, A019503, A019504, A166932, A166932, A275518.
%A _N. J. A. Sloane_, Apr 09 2014