A192444 Number of nXnXn triangular binary arrays with every 1 adjacent to an odd number other 1s

1, 4, 10, 53, 430, 4611, 79683, 2024254, 77325115, 4436707705, 381213241911, 49159472116134, 9505198037582436, 2756474544369815074

Offset

1,2

Links

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

Example

Some solutions for 7X7X7
........0..............0..............1..............0..............0
.......0.0............1.1............0.1............0.0............0.0
......0.1.0..........0.0.0..........0.0.0..........1.0.1..........1.1.0
.....1.1.0.1........1.0.0.0........0.0.0.0........1.0.0.1........0.0.0.1
....1.1.0.0.1......0.1.0.0.1......0.1.0.0.0......0.0.0.0.0......1.0.0.1.0
...1.0.0.0.0.0....1.0.0.1.0.1....1.1.0.1.0.0....1.0.1.0.0.1....0.1.0.0.0.0
..0.0.1.1.0.1.1..0.1.0.1.0.0.0..0.0.1.0.1.0.0..0.1.0.1.0.0.1..0.0.0.1.1.0.0

Crossrefs

Sequence in context: A362819 A018844 A007027 * A197902 A276123 A096423

Adjacent sequences: A192441 A192442 A192443 * A192445 A192446 A192447

Keyword

nonn

Author

R. H. Hardin Jul 01 2011

Status

approved