A192887 Number of nXnXn triangular 0..1 arrays with each element equal to at least two neighbors, containing at least one 1 and with new values 0..1 introduced in row major order

0, 0, 0, 6, 47, 698, 17979, 799893, 63066783, 8698226987, 2104632006997, 892430799525617, 663245471214514115, 863873891464881656063

Offset

1,4

Links

Table of n, a(n) for n=1..14.

Example

All solutions for 4X4X4
.....0........0........0........0........0........0
....0.0......0.0......0.0......0.0......0.0......0.0
...0.1.1....1.1.1....1.0.0....0.0.1....1.1.0....1.0.1
..0.0.1.1..1.1.1.1..1.1.0.0..0.0.1.1..1.1.0.0..1.1.1.1

Crossrefs

Sequence in context: A368270 A332238 A353548 * A321190 A320403 A354067

Adjacent sequences: A192884 A192885 A192886 * A192888 A192889 A192890

Keyword

nonn

Author

R. H. Hardin Jul 11 2011

Status

approved