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A206512 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards 9
81, 549, 549, 3399, 7737, 3399, 19797, 93405, 93405, 19797, 111495, 1020756, 2105607, 1020756, 111495, 614367, 10505604, 41873838, 41873838, 10505604, 614367, 3337695, 103812645, 769739571, 1483188648, 769739571, 103812645 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.......81........549..........3399............19797.............111495
......549.......7737.........93405..........1020756...........10505604
.....3399......93405.......2105607.........41873838..........769739571
....19797....1020756......41873838.......1483188648........47830788954
...111495...10505604.....769739571......47830788954......2671430859687
...614367..103812645...13397007426....1444445274765....138401623325535
..3337695..997160112..224125465767...41561685861258...6781274991216915
.17958813.9383642739.3639506017737.1152430341911256.318257080720663863
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..1..1....1..1..0..0....0..1..2..0....1..0..2..0....1..1..0..1
..1..0..0..0....1..2..2..0....1..1..2..0....1..0..0..0....2..1..2..0
..1..2..2..2....0..1..0..2....2..2..2..1....2..2..0..2....1..2..1..2
..1..1..2..1....2..0..1..0....2..0..0..2....0..0..0..2....0..0..2..0
..0..2..0..2....0..1..2..1....0..2..1..0....0..1..1..1....2..1..0..2
CROSSREFS
Sequence in context: A235560 A253468 A253462 * A235833 A235588 A206505
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 08 2012
STATUS
approved

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Last modified February 25 19:26 EST 2024. Contains 370332 sequences. (Running on oeis4.)