|
|
A214909
|
|
Number of 5X5X5 triangular 0..n arrays with every horizontal row nondecreasing and having the same average value
|
|
1
|
|
|
2, 38, 242, 1802, 7550, 31412, 100350, 310079, 811472, 2065406, 4695974, 10458806, 21370898, 42897546, 80938346, 150245395, 265231474, 462690716, 774729470, 1283610082, 2057355212, 3266479406, 5043183866, 7727895633, 11557992252
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
......2..........2..........2..........2..........2..........2..........2
.....2.2........1.3........2.2........1.3........2.2........2.2........1.3
....2.2.2......0.3.3......1.2.3......1.1.4......2.2.2......1.1.4......1.2.3
...1.1.3.3....1.1.3.3....0.1.3.4....1.1.3.3....0.2.3.3....0.1.3.4....0.2.2.4
..1.1.2.3.3..0.1.2.3.4..0.0.2.4.4..1.2.2.2.3..0.2.2.3.3..1.1.2.3.3..0.1.1.4.4
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|