A265586 - OEIS

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A265586

Number of nX3 0..n*3-1 arrays with upper left zero and lower right n*3-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two.

1, 84, 9327, 1427680, 308395359, 99770416100, 38840832559548, 10692035281792418, 4325881418160722213, 1373485273994265714224, 622008060358478772620983, 286739797768833085519267516

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 3 of A265590.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..0..4..8....0..8..4....0..2..6....0..1..5....0..4..5....0..4..2....0..8..6

..8..4..5....7..3..2....0..4..8....2..4..6....8..6..2....6..4..8....6..7..8

..5..4..8....2..4..8....5..6..8....8..7..8....4..0..8....3..4..8....6..7..8