A103429 (1/4)*number of acute triangles that can be formed from the points of an (n+1)X(n+1)X(n+1) lattice cube.

2, 194, 3434, 29356, 162190, 679654, 2323878, 6839595, 17909922, 42675551, 94125356, 194693240, 381214450, 712191373, 1277323894, 2210486280, 3706015236, 6040816887, 9601083812, 14916225896, 22701123860, 33905935285

Offset: 1

Author

Hugo Pfoertner, Feb 08 2005

Keywords

• nonn

Crossrefs

Cf. all triangles in lattice cube A103426; special triangles in lattice cube: A103427, A103428, A103499, A103500, A103501; A103158 tetrahedra in lattice cube.

Cf. A190019 (analogous 2-dimensional problem).