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A271191 Number of nXnXn triangular 0..5 arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all different. 0
0, 1, 72, 10794, 4396148, 5372968836, 19590379147806, 206003718526985328, 6097257359554668961413 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 5 of A271194.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

...2.2.2....0.1.0....2.1.3....1.0.2....2.2.3....2.0.0....0.0.2....1.2.2

..2.1.2.3..2.2.0.0..3.3.1.4..1.2.1.1..2.3.3.4..0.0.2.2..3.2.0.2..0.1.2.0

CROSSREFS

Cf. A271194.

Sequence in context: A093236 A146500 A271190 * A271192 A271193 A289369

Adjacent sequences:  A271188 A271189 A271190 * A271192 A271193 A271194

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 01 2016

STATUS

approved

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Last modified August 7 15:20 EDT 2020. Contains 336276 sequences. (Running on oeis4.)