A270806 A269747(n) - A270805(n).

0, 0, 0, 0, 0, 8, 27, 69, 154, 309, 546, 889

Offset

0,6

Comments

Number of regular tetrahedra in an n-node-per-edge tetrahedral grid that do not have all four vertices on the boundary of the parent grid.

Links

Table of n, a(n) for n=0..11.

Crossrefs

Cf. A269747, A270805.

Sequence in context: A030479 A061096 A084825 * A372227 A246992 A351601

Adjacent sequences: A270803 A270804 A270805 * A270807 A270808 A270809

Keyword

nonn,more

Author

N. J. A. Sloane, Apr 02 2016

Status

approved