A193752 Number of nXnXn triangular 0..1 arrays with no element equal to the sum mod 2 of all its neighbors

1, 4, 1, 1, 4, 16, 1, 1, 1, 4, 1, 16, 16, 1024, 1, 1, 1, 4, 256, 1, 1

Offset

1,2

Links

Table of n, a(n) for n=1..21.

Example

Some solutions for 6X6X6
.......1............0............0............0............1............0
......0.0..........0.1..........1.0..........1.0..........0.0..........0.1
.....0.0.0........0.0.0........0.0.0........0.0.0........1.1.1........1.1.1
....0.1.0.1......1.0.0.0......1.1.1.0......0.0.0.1......0.1.1.0......0.1.0.0
...0.0.0.1.1....1.1.1.0.1....0.1.1.0.0....1.0.1.1.1....1.0.1.0.1....1.0.0.0.0
..1.0.0.1.1.1..0.0.1.0.1.1..1.0.1.0.1.0..1.1.0.1.0.0..0.0.0.0.0.0..1.1.0.0.1.0

Crossrefs

Sequence in context: A209565 A122185 A350000 * A136680 A288580 A035589

Adjacent sequences: A193749 A193750 A193751 * A193753 A193754 A193755

Keyword

nonn,more

Author

R. H. Hardin Aug 03 2011

Status

approved