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A193186 Number of nXnXn triangular 0..6 arrays with no element equal to the sum mod 7 of any two neighbors 0
7, 216, 6258, 405648, 85784844, 49610954646, 76881172019418 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for 4X4X4

.....3........4........0........4........3........0........0........3

....3.5......3.3......3.2......3.3......1.6......4.2......1.4......6.1

...4.3.3....2.2.2....4.4.4....2.2.3....4.6.4....3.3.4....0.0.2....6.6.6

..3.4.4.2..3.3.3.3..2.4.3.4..3.3.4.4..4.4.6.4..3.4.3.3..5.1.4.0..4.1.6.4

CROSSREFS

Sequence in context: A046033 A193836 A193877 * A114939 A193224 A319538

Adjacent sequences:  A193183 A193184 A193185 * A193187 A193188 A193189

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 17 2011

STATUS

approved

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Last modified January 20 21:36 EST 2019. Contains 319336 sequences. (Running on oeis4.)