A203115 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,0,2,0,1,1,1 for x=0,1,2,3,4,5,6

1, 5, 23, 184, 2621, 66292, 2739454, 195971764, 24658743287

Offset

1,2

Comments

Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1's, every 5 is next to 5 1's, every 6 is next to 6 1'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..............1..............0..............1
.......0.3............3.0............0.1............1.1............1.0
......2.2.0..........0.2.2..........1.1.1..........1.6.1..........1.1.1
.....0.2.1.1........1.1.2.0........1.5.1.0........0.1.1.0........0.1.5.1
....1.1.4.5.1......1.5.4.1.1......0.1.4.1.1......2.2.4.1.1......1.1.4.1.0
...1.6.1.1.1.0....0.1.1.1.6.1....3.2.2.1.6.1....0.2.1.5.1.1....1.6.1.2.2.3
..0.1.1.0.1.1.1..1.1.1.0.1.1.0..0.0.2.0.1.1.0..0.3.0.1.1.0.1..0.1.1.0.2.0.0

Crossrefs

Sequence in context: A198093 A197792 A197793 * A197628 A296840 A203204

Adjacent sequences: A203112 A203113 A203114 * A203116 A203117 A203118

Keyword

nonn

Author

R. H. Hardin Dec 29 2011

Status

approved