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A237900 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
1768, 21410, 265306, 3351086, 42195634, 529992314, 6659762642, 83778337524, 1053822365410, 13250382610758, 166607568124526, 2095232432433472, 26349301348673676, 331342826243559342, 4166639480874835776 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A237904

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A031540 A135795 A206201 * A221118 A155023 A176478

Adjacent sequences:  A237897 A237898 A237899 * A237901 A237902 A237903

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 15 2014

STATUS

approved

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Last modified October 28 17:59 EDT 2021. Contains 348329 sequences. (Running on oeis4.)