A203114 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,0,2,1,0,1,2 for x=0,1,2,3,4,5,6

1, 5, 17, 110, 1419, 28460, 974563, 56419980, 5461470023

Offset

1,2

Comments

Every 0 is next to 0 5's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 0's, every 5 is next to 5 1'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..............1..............0..............0..............0
.......1.1............1.0............0.0............1.1............1.1
......1.5.1..........3.1.1..........0.4.0..........1.5.1..........1.5.1
.....0.1.3.0........0.1.5.1........1.1.2.2........0.3.1.0........0.1.3.0
....2.2.1.4.0......1.2.2.1.0......1.5.2.6.2......0.0.1.2.2......2.2.1.0.0
...2.6.2.0.0.4....1.2.6.2.4.0....0.1.1.2.2.1....0.0.4.2.6.2....2.6.2.4.0.4
..0.2.2.0.0.0.0..0.1.2.2.0.0.0..1.1.3.0.1.1.0..0.4.0.0.2.2.0..0.2.2.0.0.0.0

Crossrefs

Sequence in context: A301641 A067710 A197912 * A198027 A216924 A009240

Adjacent sequences: A203111 A203112 A203113 * A203115 A203116 A203117

Keyword

nonn

Author

R. H. Hardin Dec 29 2011

Status

approved