A270805 Number of regular tetrahedra in an n-node-per-edge tetrahedral grid that have all four vertices on the boundary of the parent grid.

0, 0, 1, 5, 16, 31, 53, 86, 127, 167, 214, 265

Offset

0,4

Links

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

Crossrefs

Cf. A269747, A270806.

Sequence in context: A134594 A222535 A063076 * A132479 A045944 A038361

Adjacent sequences: A270802 A270803 A270804 * A270806 A270807 A270808

Keyword

nonn,more

Author

N. J. A. Sloane, Apr 02 2016

Status

approved