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A265972 Number of nX7 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique. 1
17012, 953072, 1282192, 2263704, 5120120, 13435392, 34825856, 92019824, 231761056, 593080872, 1481688160, 3832636952, 9840184608, 25358167888, 64217497384, 165719314208, 425547780616, 1093883487608, 2780744054920 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A265973.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..160

EXAMPLE

Some solutions for n=1

..3..3..1..2..2..3..1....0..4..1..0..0..4..4....0..2..2..0..3..3..4

CROSSREFS

Cf. A265973.

Sequence in context: A326808 A300151 A205232 * A265927 A252647 A332100

Adjacent sequences:  A265969 A265970 A265971 * A265973 A265974 A265975

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2015

STATUS

approved

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Last modified October 17 12:35 EDT 2021. Contains 348048 sequences. (Running on oeis4.)