A265594 Number of n X n 0..n*n-1 arrays with upper left zero and lower right n*n-1 and each element differing from its horizontal, vertical and antidiagonal neighbors by a power of two.

1, 2, 0, 2908, 11746590, 0, 618833411493090, 220650208129805684

Offset

1,2

Comments

Diagonal of A265601.

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=4
..0..8..7..6....0..4..8..9....0..4..8.12....0..4..8..9....0..4..5..9
..4..6..8..7....8..6..7..8....8.12.10.11....8..6..7.11....2..6..7.11
..8.10..9.11...10..8..9..7...10..8.12.13...10..8..9.13....4..8..9.13
.12.11.13.15...12.10.11.15....6.10.14.15....9..7.11.15....6.10.11.15

Crossrefs

Cf. A265601.

Sequence in context: A114630 A114632 A036108 * A269904 A090446 A270830

Adjacent sequences: A265591 A265592 A265593 * A265595 A265596 A265597

Keyword

nonn

Author

R. H. Hardin, Dec 10 2015

Status

approved