A271436 - OEIS

A271436

Number of nXnXn triangular 0..5 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.

0, 0, 12, 1629, 153984, 16992846, 2653292322, 639869193777, 247683857110080

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OFFSET

1,3

COMMENTS

Column 5 of A271437.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

.....0........0........0........0........0........0........0........0

....1.0......0.1......1.1......0.0......1.2......1.1......1.0......1.0

...2.1.3....0.1.0....2.1.3....1.2.0....2.2.1....2.1.0....1.0.2....0.0.0

..2.1.1.1..2.1.0.0..1.2.3.1..1.2.0.2..3.2.1.4..1.2.0.1..1.1.2.0..2.3.3.0

CROSSREFS

Cf. A271437.

Sequence in context: A159383 A015011 A271435 * A034280 A146201 A009120

Adjacent sequences: A271433 A271434 A271435 * A271437 A271438 A271439

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 07 2016

STATUS

approved