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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. 2
0, 0, 1, 5, 16, 31, 53, 86, 127, 167, 214, 265 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 28 07:07 EST 2020. Contains 331317 sequences. (Running on oeis4.)