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A270261
Number of 6X6X6 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
1
0, 40020, 534438768, 302595682944, 67475902622400, 4283012188676772, 154159188959801952, 3105816183187898208, 44275679666499046080, 457028430985003084500, 3755534623771656954960, 25194187795191181725600
OFFSET
1,2
COMMENTS
Row 6 of A270256.
LINKS
EXAMPLE
Some solutions for n=2
.......2............2............2............1............2............2
......1.2..........1.2..........0.1..........0.0..........2.2..........2.1
.....1.2.2........2.2.2........0.0.0........0.0.0........2.1.2........1.2.2
....2.2.2.1......1.1.2.1......0.0.0.0......0.1.0.0......2.2.2.1......2.2.2.2
...2.1.2.2.2....2.2.2.2.2....0.0.0.0.0....1.0.0.0.1....2.2.2.2.1....1.1.2.2.2
..1.2.2.2.1.2..2.2.2.2.2.2..0.1.0.0.0.1..2.1.0.0.0.0..1.2.2.2.2.2..2.2.2.1.2.2
CROSSREFS
Cf. A270256.
Sequence in context: A106772 A015328 A251970 * A272889 A126104 A031645
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 14 2016
STATUS
approved