A192888 Number of nXnXn triangular 0..2 arrays with each element equal to at least two neighbors, containing at least one 2 and with new values 0..2 introduced in row major order

0, 0, 0, 3, 41, 2728, 191954, 26587582, 7328146929, 4001202860541

Offset

1,4

Links

Table of n, a(n) for n=1..10.

Example

All solutions for 4X4X4
.....0........0........0
....0.0......0.0......0.0
...1.1.2....1.0.2....1.2.2
..1.1.2.2..1.1.2.2..1.1.2.2

Crossrefs

Sequence in context: A139161 A262644 A238990 * A239039 A228456 A238717

Adjacent sequences: A192885 A192886 A192887 * A192889 A192890 A192891

Keyword

nonn

Author

R. H. Hardin Jul 11 2011

Status

approved