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A235853
Number of (n+1)X(4+1) 0..3 arrays with the upper median equal to the lower median in every 2X2 subblock
1
30624, 1629216, 73075844, 3725170008, 181155460364, 9088092971636, 449721286329228, 22443371269251304, 1115322432520498412, 55566546393457784844, 2764607117614633008924, 137659672638051730401176
OFFSET
1,1
COMMENTS
Column 4 of A235856
LINKS
EXAMPLE
Some solutions for n=1
..1..3..2..2..2....3..2..3..2..2....3..1..3..3..1....0..0..0..0..1
..1..1..2..2..3....2..2..2..2..1....1..0..1..3..3....2..0..1..0..0
CROSSREFS
Sequence in context: A254976 A234791 A134118 * A237636 A236126 A236944
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2014
STATUS
approved