A193324 Number of nXnXn triangular 0..2 arrays with each element equal to the product mod 3 of two neighbors

0, 5, 21, 613, 52762, 11259545, 6420980857, 9905776786313, 41165813245599155

Offset

1,2

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for 4X4X4
.....0........0........1........1........1........0........2........1
....0.0......0.1......1.1......2.2......2.2......0.2......2.1......1.1
...1.2.2....1.1.1....1.1.2....0.1.1....1.2.2....1.2.1....0.0.1....1.1.1
..1.1.1.2..1.1.2.2..1.1.2.1..0.0.2.2..2.2.2.1..2.2.1.1..0.0.2.2..2.2.1.1

Crossrefs

Sequence in context: A009758 A143503 A144779 * A220002 A156860 A225846

Adjacent sequences: A193321 A193322 A193323 * A193325 A193326 A193327

Keyword

nonn

Author

R. H. Hardin Jul 22 2011

Status

approved