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A185575 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum 4
256, 3392, 3392, 44944, 125664, 44944, 598688, 4649320, 4649320, 598688, 7974976, 173985944, 480362772, 173985944, 7974976, 106125920, 6508370600, 50465542904, 50465542904, 6508370600, 106125920, 1412256400, 243047375432, 5296925520216 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........256.........3392.........44944.........598688.......7974976
.......3392.......125664.......4649320......173985944....6508370600
......44944......4649320.....480362772....50465542904.5296925520216
.....598688....173985944...50465542904.14968484411348
....7974976...6508370600.5296925520216
..106125920.243047375432
.1412256400
LINKS
EXAMPLE
Some solutions for 4X3
..0..0..2....0..0..0....2..0..0....0..0..0....0..2..0....2..2..2....2..0..0
..0..1..3....0..0..3....1..2..2....0..0..3....0..3..3....0..0..3....1..1..2
..2..0..0....0..2..1....0..0..2....2..0..3....0..0..1....2..0..1....2..2..2
..1..2..0....3..1..0....0..1..2....0..2..2....2..0..2....3..2..0....3..0..1
CROSSREFS
Sequence in context: A236251 A344304 A070056 * A185933 A185572 A185925
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 31 2011
STATUS
approved

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Last modified April 21 16:35 EDT 2024. Contains 371874 sequences. (Running on oeis4.)