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A271139 Number of nXnXn triangular 0..4 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all different. 0
0, 1, 56, 4890, 778256, 245558565, 158940847866, 214449879142050, 608705034569823114, 3658579907427743991339 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 4 of A271141.
LINKS
EXAMPLE
Some solutions for n=4
.....0........0........0........0........0........0........0........0
....0.1......0.1......1.1......0.1......1.1......1.1......1.0......1.2
...1.0.0....1.0.1....2.1.0....1.1.2....2.1.3....1.2.2....1.2.2....3.1.1
..2.2.0.2..1.0.2.1..2.1.1.3..0.0.2.2..1.1.1.0..0.1.0.0..0.1.2.0..2.3.3.3
CROSSREFS
Cf. A271141.
Sequence in context: A003747 A049033 A271138 * A271140 A278324 A009600
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2016
STATUS
approved

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Last modified May 29 14:24 EDT 2024. Contains 372952 sequences. (Running on oeis4.)