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A183976 T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one 5
128, 992, 992, 7688, 13168, 7688, 64976, 180236, 180236, 64976, 549152, 2735260, 4470575, 2735260, 549152, 4780976, 41834260, 124987628, 124987628, 41834260, 4780976, 41623688, 664848772, 3536846184, 6533126804, 3536846184, 664848772 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......128.........992.........7688........64976.......549152........4780976

.......992.......13168.......180236......2735260.....41834260......664848772

......7688......180236......4470575....124987628...3536846184...104681141079

.....64976.....2735260....124987628...6533126804.347446206704.19440886672754

....549152....41834260...3536846184.347446206704

...4780976...664848772.104681141079

..41623688.10590791696

.366310352

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..40

EXAMPLE

Some solutions for 3X3

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

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

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

...

...5..5.......7..7.......7..6.......2..2.......9..9.......8..9.......7..8...

...5..6.......8..7.......6..6.......2..3.......9..9.......8..9.......8..8...

CROSSREFS

Sequence in context: A188841 A188704 A297344 * A183972 A143708 A130813

Adjacent sequences:  A183973 A183974 A183975 * A183977 A183978 A183979

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 08 2011

STATUS

approved

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Last modified February 29 05:25 EST 2020. Contains 332353 sequences. (Running on oeis4.)