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A185614 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum 5
0, 171, 171, 361, 2121, 361, 3645, 24993, 24993, 3645, 13365, 313105, 554305, 313105, 13365, 94905, 3959747, 16830089, 16830089, 3959747, 94905, 424845, 50512903, 455401149, 1099131565, 455401149, 50512903, 424845, 2682129, 646053371 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

.......0.......171.........361........3645.......13365.........94905

.....171......2121.......24993......313105.....3959747......50512903

.....361.....24993......554305....16830089...455401149...13132512119

....3645....313105....16830089..1099131565.68751907871.4433660417573

...13365...3959747...455401149.68751907871

...94905..50512903.13132512119

..424845.646053371

.2682129

LINKS

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

EXAMPLE

Some solutions for 4X3

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

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

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

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

CROSSREFS

Sequence in context: A015975 A292090 A186871 * A187140 A185845 A045149

Adjacent sequences:  A185611 A185612 A185613 * A185615 A185616 A185617

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 31 2011

STATUS

approved

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Last modified August 15 05:02 EDT 2022. Contains 356123 sequences. (Running on oeis4.)