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A203656
T(n,k)=1/25 the number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements
8
9, 81, 81, 729, 1517, 729, 6561, 28057, 28057, 6561, 59049, 519445, 1116249, 519445, 59049, 531441, 9616161, 44577561, 44577561, 9616161, 531441, 4782969, 178019197, 1780968921, 3906948333, 1780968921, 178019197, 4782969, 43046721, 3295578857
OFFSET
1,1
COMMENTS
Table starts
........9..........81.............729...............6561.................59049
.......81........1517...........28057.............519445...............9616161
......729.......28057.........1116249...........44577561............1780968921
.....6561......519445........44577561.........3906948333..........343812029649
....59049.....9616161......1780968921.......343812029649........67213191427593
...531441...178019197.....71156938905.....30292030417413.....13192335511091073
..4782969..3295578857...2843024036697...2669260624372937...2592476403527692089
.43046721.61009378085.113591039131161.235230466316286557.509649251749126118193
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..1..0....2..4..1..4....3..1..1..3....3..0..4..4....0..3..4..0
..4..1..2..1....2..2..4..4....4..3..1..1....2..3..0..4....3..2..3..4
..0..4..1..4....1..2..2..4....3..1..0..1....4..2..3..0....2..2..2..3
..3..0..4..3....3..1..2..2....1..1..1..0....0..4..2..3....4..2..4..2
..4..3..0..4....2..3..1..2....4..1..1..1....0..0..4..2....2..4..3..4
CROSSREFS
Column 1 is A001019
Sequence in context: A209280 A014393 A008463 * A043087 A037414 A161147
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 04 2012
STATUS
approved