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A193833 Number of nXnXn triangular 0..3 arrays with no element equal to the sum or difference mod 4 of any two of its neighbors 1
4, 36, 77, 1089, 33123, 2098879, 268450093, 68719637953, 35184374010883, 36028797051155647, 73786976295548947437, 302231454903676253269793, 2475880078570761210896556355, 40564819207303340877897838038559 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..24

EXAMPLE

Some solutions for 4X4X4

.....2........1........2........2........2........2........2........1

....2.2......2.2......3.3......3.2......2.2......3.3......3.3......1.1

...2.2.2....2.2.2....3.2.2....2.3.3....3.3.2....3.2.2....2.2.2....4.4.1

..3.2.2.2..2.2.1.2..2.2.2.2..2.2.3.2..3.2.2.3..3.2.2.3..2.3.3.2..4.4.4.1

CROSSREFS

Sequence in context: A167632 A072157 A075215 * A193183 A152760 A016826

Adjacent sequences:  A193830 A193831 A193832 * A193834 A193835 A193836

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 06 2011

STATUS

approved

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Last modified December 7 22:29 EST 2019. Contains 329850 sequences. (Running on oeis4.)