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A214591 Number of nXnXn triangular 0..4 arrays with every horizontal row having the same average value 1
5, 13, 157, 10177, 3330677, 5495329427, 43988453613377, 1673440688496376877, 301618636251020715984377, 258456549967842122873898234377, 1057468726916674176186809546298140627 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A214595

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..54

EXAMPLE

Some solutions for n=4

.....1........1........2........2........2........2........2........2

....2.0......2.0......3.1......4.0......2.2......0.4......4.0......2.2

...2.0.1....0.1.2....2.4.0....2.2.2....4.1.1....1.3.2....1.2.3....0.3.3

..0.1.1.2..2.0.0.2..1.4.2.1..4.1.2.1..2.3.3.0..2.0.3.3..2.3.1.2..4.1.3.0

CROSSREFS

Sequence in context: A247820 A336097 A187894 * A159261 A117077 A124924

Adjacent sequences:  A214588 A214589 A214590 * A214592 A214593 A214594

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 22 2012

STATUS

approved

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Last modified January 24 15:20 EST 2021. Contains 340411 sequences. (Running on oeis4.)