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A185569 Number of (n+1)X3 0..3 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum 1
704, 15776, 319448, 7140256, 159990728, 3638705368, 82978157360, 1901358817256, 43637766654744, 1003656982121376, 23106678843303728, 532562890880016376, 12282302223948007880, 283443089332785590088, 6543858992849366363024 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A185571
LINKS
EXAMPLE
Some solutions for 5X3
..2..2..2....0..2..0....2..2..2....2..0..2....2..0..0....0..2..0....0..2..0
..2..0..2....2..0..2....0..1..2....2..0..2....2..3..0....2..0..2....0..2..0
..2..2..0....0..0..2....2..2..2....2..2..2....2..0..0....0..2..0....0..0..0
..1..1..1....1..1..1....2..2..2....1..1..2....1..3..3....2..3..2....1..3..1
..3..2..3....2..2..2....0..1..0....3..2..2....3..3..1....1..0..1....2..1..2
CROSSREFS
Sequence in context: A186916 A185800 A188368 * A238322 A091553 A224491
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 31 2011
STATUS
approved

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)