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A214902 Number of nXnXn triangular 0..4 arrays with every horizontal row nondecreasing and having the same average value 1
5, 9, 29, 182, 1802, 29162, 657722, 21063242, 892354322, 48771558002, 3355941877202, 288300261981602, 29970020819138402, 3775596638574103202, 566303743347081854402, 100233490058027413401602 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A214906

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..120

EXAMPLE

Some solutions for n=4

.....1........2........3........2........1........3........2........2

....1.1......0.4......2.4......2.2......0.2......3.3......1.3......0.4

...0.1.2....0.2.4....3.3.3....1.1.4....0.0.3....2.3.4....1.1.4....0.2.4

..0.0.0.4..0.2.3.3..0.4.4.4..1.1.2.4..1.1.1.1..1.3.4.4..0.1.3.4..1.2.2.3

CROSSREFS

Sequence in context: A270595 A303988 A242329 * A049602 A119031 A271129

Adjacent sequences:  A214899 A214900 A214901 * A214903 A214904 A214905

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 29 2012

STATUS

approved

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Last modified August 12 09:17 EDT 2020. Contains 336438 sequences. (Running on oeis4.)