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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. 0
1, 2, 0, 2908, 11746590, 0, 618833411493090, 220650208129805684 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 17 16:08 EST 2019. Contains 329241 sequences. (Running on oeis4.)