A103500 (1/4)*number of non-degenerate isosceles triangles that can be formed from the points of an (n+1)X(n+1)X(n+1) lattice cube.

8, 194, 1610, 8407, 32002, 98191, 254286, 596715, 1267128, 2506286, 4646666, 8239907, 13945450, 22784572, 35977540, 55368882, 82940928, 121737174, 174853556, 247158893, 343382312, 470183200, 634503574, 847118119, 1117272006

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Crossrefs

Cf. all triangles in lattice cube A103426; special triangles in lattice cube: A103427, A103428, A103429, A103499, A103501; A103158 tetrahedra in lattice cube.

Sequence in context: A204820 A041269 A172340 * A232911 A338806 A119299

Adjacent sequences: A103497 A103498 A103499 * A103501 A103502 A103503

Keyword

nonn

Author

Hugo Pfoertner, Feb 08 2005

Status

approved