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A271406 Number of nXnXn triangular 0..7 arrays with new values introduced in sequential zero-upwards order and exactly one inverted 2x2x2 triangle having values all equal. 0
0, 0, 15, 11247, 144602898, 34755893906751, 91608343580208540348, 1934213218888199972768791470, 309708109612351278656208179310639771, 376951205037184664653857886991084818378381176 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 7 of A271407.
LINKS
EXAMPLE
Some solutions for n=4
.....0........0........0........0........0........0........0........0
....1.1......1.1......1.1......1.0......1.0......1.1......1.2......1.1
...0.1.2....2.2.3....0.1.1....1.1.2....2.1.1....2.1.0....3.3.3....2.2.2
..3.3.2.2..0.2.2.2..2.1.3.2..1.1.0.0..2.1.1.1..3.3.2.3..1.3.2.2..2.1.2.3
CROSSREFS
Cf. A271407.
Sequence in context: A206513 A271404 A271405 * A208299 A282945 A112614
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 06 2016
STATUS
approved

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)