A214589 Number of nXnXn triangular 0..2 arrays with every horizontal row having the same average value

3, 5, 23, 401, 20351, 2869211, 1127599139, 1248252244661, 3918263795984603, 35080215765450132755, 899912775031092255512711, 66403663756769266442027284403, 14140062564030204365431731967633343

Offset

1,1

Comments

Column 2 of A214595

Links

R. H. Hardin, Table of n, a(n) for n = 1..66

Example

Some solutions for n=4
.....1........1........1........1........1........1........1........1
....1.1......2.0......0.2......0.2......0.2......2.0......0.2......1.1
...2.0.1....2.0.1....1.2.0....2.1.0....1.1.1....2.1.0....1.2.0....0.2.1
..0.2.1.1..1.0.1.2..0.2.2.0..1.2.0.1..2.1.1.0..0.1.1.2..0.2.1.1..0.0.2.2

Crossrefs

Sequence in context: A352691 A137086 A137087 * A365036 A309844 A062218

Adjacent sequences: A214586 A214587 A214588 * A214590 A214591 A214592

Keyword

nonn

Author

R. H. Hardin Jul 22 2012

Status

approved