A193157 Number of nXnXn triangular 0..3 arrays with each element equal to the sum mod 4 of two neighbors

0, 4, 50, 7220, 3617435, 7105087996, 53464012176143

Offset

1,2

Links

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

Example

Some solutions for 4X4X4
.....0........1........3........2........3........3........1........3
....0.0......3.2......2.1......0.2......2.1......2.1......2.3......2.1
...1.3.2....1.3.1....1.1.2....3.1.3....0.3.2....1.2.1....1.3.0....3.3.3
..3.2.2.0..2.1.1.2..3.2.3.1..1.2.1.0..0.0.2.0..0.3.3.0..2.1.1.1..1.2.2.1

Crossrefs

Sequence in context: A016078 A327229 A231832 * A235604 A221477 A122464

Adjacent sequences: A193154 A193155 A193156 * A193158 A193159 A193160

Keyword

nonn

Author

R. H. Hardin Jul 16 2011

Status

approved