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A184078
Number of (n+1)X7 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
0
1499, 4233, 104404, 2628898, 78169918, 2187790488, 53028481224, 1151733506397, 21165595491118, 339958386144679, 4886934677532449, 62202950868729265, 707763287958565724, 7237027155001951521
OFFSET
1,1
COMMENTS
Column 6 of A184081
EXAMPLE
Some solutions for 3X7
..0..1..1..1..2..2..2....0..2..2..2..2..2..2....0..1..1..1..1..2..2
..1..1..1..2..1..1..1....2..1..1..1..1..1..1....1..0..0..1..1..0..0
..2..0..2..0..2..2..2....2..1..2..2..2..2..2....1..1..2..1..1..2..2
...
...3..4..5..6..6..6.......5..6..6..6..6..6.......2..2..3..4..4..4...
...4..4..5..5..6..6.......6..5..6..6..6..6.......3..3..4..4..4..4...
CROSSREFS
Sequence in context: A345781 A328974 A236732 * A098191 A253509 A237136
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2011
STATUS
approved