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A214911
Number of 7X7X7 triangular 0..n arrays with every horizontal row nondecreasing and having the same average value
1
2, 578, 13442, 657722, 8943218, 130431428, 1207302502, 10272615125, 64849263302, 384014075750, 1885027008818, 8723067515222, 34924262211422, 133490468673758, 458639082931598, 1515242313469477, 4594326578653430, 13491494779735190
OFFSET
1,1
COMMENTS
Row 7 of A214906
LINKS
EXAMPLE
Some solutions for n=4
........2..............2..............2..............2..............2
.......0.4............0.4............0.4............0.4............0.4
......1.1.4..........1.1.4..........0.2.4..........1.1.4..........1.1.4
.....2.2.2.2........0.2.3.3........2.2.2.2........0.2.3.3........1.2.2.3
....0.2.2.3.3......0.2.2.3.3......1.1.2.3.3......0.0.3.3.4......0.1.3.3.3
...2.2.2.2.2.2....0.0.2.3.3.4....0.2.2.2.2.4....0.2.2.2.3.3....0.1.1.3.3.4
..0.1.2.2.3.3.3..1.1.1.1.2.4.4..0.1.1.2.2.4.4..0.0.2.2.3.3.4..0.1.1.1.3.4.4
CROSSREFS
Sequence in context: A306635 A212840 A129697 * A203770 A121850 A291320
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 29 2012
STATUS
approved