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A237210 Number of (n+1)X(7+1) 0..3 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal 0
2899672, 268073808, 19305898426, 1999471396100, 174915940209829, 18626989825961382, 1753155965502960984, 191933190731923382612, 18788583913809663199435, 2107861171964701202223083 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A237211

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A237944 A101768 A101769 * A209795 A246054 A251247

Adjacent sequences:  A237207 A237208 A237209 * A237211 A237212 A237213

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 05 2014

STATUS

approved

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Last modified May 25 12:30 EDT 2019. Contains 323568 sequences. (Running on oeis4.)