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A265619 T(n,k)=Number of nXk 0..n*k-1 arrays with upper left zero and lower right n*k-1 and each element differing from its horizontal and diagonal neighbors by a power of two. 9
1, 1, 1, 1, 0, 3, 2, 64, 45, 16, 16, 908, 5625, 1098, 125, 79, 29296, 392320, 545952, 86800, 1296, 456, 538517, 13534874, 36820624, 147336019, 3882992, 16807, 2194, 10912865, 3413887598, 41288839953, 283374980138, 54825790582, 199692576 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Table starts

.......1.............1................1..................2..................16

.......1.............0...............64................908...............29296

.......3............45.............5625.............392320............13534874

......16..........1098...........545952...........36820624.........41288839953

.....125.........86800........147336019.......283374980138....1819521260530360

....1296.......3882992......54825790582....281538588667512.2227848096385852333

...16807.....199692576...25237215601657.353827263949405920

..262144...10078711072.5398176185968548

.4782969.1696870266800

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for n=3 k=4

..0..8.10..2....0..8..9.10....0..4..2..4....0..2..4..5....0..4..0..1

..9..8..7..8....6..8..9..7....3..1..3..1....0..2.10..6....0..2..3..1

..0..8..9.11....5..7..9.11....2..1..3.11....3..1..3.11....6..2..3.11

CROSSREFS

Column 1 is A000272.

Row 1 is A265173.

Sequence in context: A190286 A063513 A265635 * A298021 A016461 A069576

Adjacent sequences:  A265616 A265617 A265618 * A265620 A265621 A265622

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 10 2015

STATUS

approved

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Last modified October 26 06:08 EDT 2021. Contains 348257 sequences. (Running on oeis4.)