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A205170 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order 9
13, 159, 159, 2277, 8479, 2277, 33831, 474853, 474853, 33831, 506493, 26702419, 100138314, 26702419, 506493, 7594479, 1502057181, 21125224557, 21125224557, 1502057181, 7594479, 113908437, 84495589507, 4456641224469, 16713430246949 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.........13.............159.................2277.....................33831
........159............8479...............474853..................26702419
.......2277..........474853............100138314...............21125224557
......33831........26702419..........21125224557............16713430246949
.....506493......1502057181........4456641224469.........13223001109687815
....7594479.....84495589507......940186880752830......10461512493459648399
..113908437...4753161432989...198344748421652865....8276732547425415428669
.1708600311.267381383420963.41843425013764138653.6548221560172100787717125
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..0..0....0..0..0..0....0..1..0..2....0..0..0..0....0..0..1..0
..0..1..0..1....0..1..0..1....0..3..3..0....0..1..2..1....2..3..1..0
..1..2..0..2....0..1..1..1....1..3..2..1....1..1..1..1....0..1..1..1
..0..1..0..3....0..2..1..2....1..2..1..1....2..2..1..0....1..2..2..3
..2..2..1..2....3..3..0..3....0..2..0..3....0..3..0..0....0..3..3..0
CROSSREFS
Sequence in context: A015470 A084328 A000830 * A205163 A118673 A216300
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 22 2012
STATUS
approved

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Last modified March 18 22:09 EDT 2024. Contains 370951 sequences. (Running on oeis4.)