|
|
A236723
|
|
Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock equal
|
|
1
|
|
|
550, 1956, 6879, 26724, 105206, 437291, 1848980, 8110850, 36063603, 164600818, 757902648, 3556599303, 16776665346, 80262973548, 385100839073, 1867833712028, 9073256041802, 44449997869523, 217924654516054, 1075628687033984
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 81 (see link above)
|
|
EXAMPLE
|
Some solutions for n=5
..2..0..2..0....1..2..0..1....1..2..0..1....2..1..2..1....0..2..1..2
..1..2..1..2....1..1..0..2....0..0..1..1....2..2..0..2....2..0..1..0
..2..2..2..2....2..1..1..0....2..1..1..0....1..2..1..2....0..2..1..2
..1..2..1..2....0..0..1..1....0..0..1..1....0..2..0..2....2..0..1..2
..0..2..2..2....2..1..1..0....2..1..1..2....1..2..1..2....1..1..2..1
..1..2..1..0....0..0..1..1....1..1..0..0....2..0..2..2....2..0..1..2
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|