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A201212
Number of nX4 0..3 arrays with every row and column running average nondecreasing rightwards and downwards
1
51, 867, 11932, 146946, 1692945, 18624423, 198262359, 2055746385, 20869314255, 208139081237, 2045065967111, 19837690800848, 190312987378848, 1808321481842796, 17039496826295448, 159395007901738133
OFFSET
1,1
COMMENTS
Column 4 of A201216
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0....0..0..0..3....0..0..3..2....0..0..2..2....0..0..0..0
..0..3..2..2....0..0..3..3....1..2..3..2....0..2..3..2....0..3..3..2
..2..2..3..3....1..3..3..3....1..1..3..2....2..3..3..3....1..2..2..2
CROSSREFS
Sequence in context: A210079 A201832 A317651 * A153221 A172639 A231648
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved