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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A184081

LINKS

Table of n, a(n) for n=1..14.

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

Adjacent sequences:  A184075 A184076 A184077 * A184079 A184080 A184081

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 09 2011

STATUS

approved

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Last modified December 7 13:08 EST 2021. Contains 349581 sequences. (Running on oeis4.)