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A198642 T(n,k)=Number of 2nX2k 0..2 arrays with values 0..2 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors 5
4, 36, 36, 376, 2436, 376, 3936, 162776, 162776, 3936, 41216, 10937316, 70145916, 10937316, 41216, 431616, 734979136, 30189380016, 30189380016, 734979136, 431616, 4519936, 49393306556, 13004327687556, 83436203795656, 13004327687556 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........4............36..............376...............3936..............41216
.......36..........2436...........162776...........10937316..........734979136
......376........162776.........70145916........30189380016.....13004327687556
.....3936......10937316......30189380016.....83436203795656.230598746057340176
....41216.....734979136...13004327687556.230598746057340176
...431616...49393306556.5601924832399656
..4519936.3319433387656
.47333376
LINKS
EXAMPLE
Some solutions for n=2 k=2
..0..1..2..1....0..0..0..1....0..0..1..1....0..1..2..2....0..1..2..0
..2..0..1..0....0..2..0..0....0..0..1..1....1..0..2..2....1..2..0..1
..1..1..0..2....0..0..1..0....2..1..2..0....0..1..0..0....2..0..2..0
..1..1..2..0....2..0..0..0....1..2..0..1....1..2..0..0....0..1..0..2
CROSSREFS
Sequence in context: A144153 A027644 A174426 * A327998 A274891 A062182
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 27 2011
STATUS
approved

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Last modified February 23 07:30 EST 2024. Contains 370269 sequences. (Running on oeis4.)