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A206383 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..3 introduced in row major order. 8
15, 85, 85, 641, 1369, 641, 5257, 25945, 25945, 5257, 44585, 520097, 1198601, 520097, 44585, 385465, 10690969, 57656713, 57656713, 10690969, 385465, 3375401, 222329489, 2808967145, 6554439373, 2808967145, 222329489, 3375401, 29817817 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.......15..........85.............641................5257
.......85........1369...........25945..............520097
......641.......25945.........1198601............57656713
.....5257......520097........57656713..........6554439373
....44585....10690969......2808967145........748963157161
...385465...222329489....137393517193......85678539791333
..3375401..4648291369...6728546532521....9803619036105721
.29817817.97418918945.329641979105737.1121819841273065957
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..0..0....0..0..0..0....0..0..1..2....0..0..0..1....0..1..0..2
..1..0..1..0....0..0..0..0....0..2..0..1....0..1..0..0....2..1..3..2
..1..1..1..1....0..0..0..0....2..1..2..0....0..0..3..0....0..1..3..1
..1..0..1..2....0..0..0..0....0..2..2..2....3..0..0..0....3..1..0..0
..1..1..1..1....0..0..0..0....1..0..2..0....2..3..0..1....3..1..2..3
CROSSREFS
Column 1 is A206170.
Sequence in context: A241220 A279740 A281189 * A020136 A176033 A067401
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 07 2012
STATUS
approved

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Last modified April 20 12:09 EDT 2024. Contains 371838 sequences. (Running on oeis4.)