A203112 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,1,2,0,0,0,2 for x=0,1,2,3,4,5,6

1, 5, 32, 587, 24986, 2436820, 551552165, 287595762556, 346645264281800

Offset

1,2

Comments

Every 0 is next to 0 6's, every 1 is next to 1 1's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 0's, every 5 is next to 5 0's, every 6 is next to 6 2's

Links

Table of n, a(n) for n=1..9.

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............0..............0..............0..............0
.......1.0............1.1............0.1............2.2............2.2
......0.1.3..........0.2.2..........1.0.1..........2.6.2..........2.6.2
.....0.0.0.0........0.2.6.2........1.0.5.0........0.2.2.0........0.2.2.0
....2.2.0.5.0......3.0.2.2.0......2.2.0.0.3......0.0.0.1.1......0.5.0.4.0
...2.6.2.0.4.0....0.1.4.0.5.0....2.6.2.4.3.0....2.0.5.0.0.0....0.0.0.0.3.1
..0.2.2.0.3.0.0..0.1.0.0.0.0.0..0.2.2.0.0.1.1..2.2.0.3.0.4.0..0.1.1.0.3.0.1

Crossrefs

Sequence in context: A185336 A125709 A363314 * A349099 A174471 A275233

Adjacent sequences: A203109 A203110 A203111 * A203113 A203114 A203115

Keyword

nonn

Author

R. H. Hardin Dec 29 2011

Status

approved