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A271140 Number of nXnXn triangular 0..5 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all different. 0
0, 1, 56, 4899, 797680, 269282132, 197805084468, 321887622195271, 1163415729672643756 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 5 of A271141.
LINKS
EXAMPLE
Some solutions for n=4
.....0........0........0........0........0........0........0........0
....1.2......0.1......0.0......1.0......1.2......1.0......1.0......1.0
...3.1.1....2.1.1....0.1.0....0.1.2....1.2.1....2.1.0....1.1.1....0.0.2
..1.1.1.1..2.1.1.3..1.1.2.0..1.1.2.0..3.1.1.4..1.1.1.2..1.2.2.3..2.0.1.1
CROSSREFS
Cf. A271141.
Sequence in context: A049033 A271138 A271139 * A278324 A009600 A278777
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2016
STATUS
approved

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Last modified May 26 05:37 EDT 2024. Contains 372807 sequences. (Running on oeis4.)