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A270611 Number of 6X6X6 triangular 0..n arrays with some element plus some adjacent element totalling n+1 or n-1 exactly once. 1
0, 0, 44168712, 38923001616, 1749723617976, 176610474548304, 4288332432901128, 139782884096635692, 1969237211896886586, 29229202706222377392, 264578668721400632640, 2322718464029360624340, 14967526923376689281208 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row 6 of A270606.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for n=3

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

......0.0..........0.0..........0.0..........0.0..........0.0..........0.0

.....0.1.0........0.3.0........3.0.3........3.0.0........0.1.0........3.0.0

....0.0.0.0......3.0.1.0......0.3.3.0......0.3.0.0......0.0.3.0......0.3.3.0

...0.0.0.0.1....0.0.0.0.0....0.0.3.3.3....0.0.0.0.3....0.0.3.0.0....0.0.0.3.3

..0.0.0.3.0.3..0.0.1.0.0.0..0.0.0.0.0.1..0.0.0.0.1.0..0.0.3.3.0.0..0.0.1.0.0.1

CROSSREFS

Cf. A270606.

Sequence in context: A139029 A206326 A172718 * A049360 A130913 A213353

Adjacent sequences:  A270608 A270609 A270610 * A270612 A270613 A270614

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 20 2016

STATUS

approved

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Last modified May 29 16:43 EDT 2020. Contains 334704 sequences. (Running on oeis4.)