A202758 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,1,2,0,2,0,0 for x=0,1,2,3,4,5,6

1, 5, 29, 429, 13595, 936884, 135823746, 41610296279, 27021610060202

Offset

1,2

Comments

Every 0 is next to 0 4'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 2's, every 5 is next to 5 0's, every 6 is next to 6 0'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
.......0.0............3.0............3.3............0.0............0.0
......0.6.0..........0.5.0..........0.0.0..........0.5.3..........3.0.0
.....0.0.0.1........1.0.0.0........1.0.5.0........1.0.0.0........1.0.5.0
....0.5.2.2.1......1.2.2.0.0......1.2.2.0.0......1.2.2.0.0......1.2.2.0.0
...0.0.0.2.4.2....2.4.2.0.6.0....2.4.2.0.6.0....2.4.2.0.6.0....2.4.2.0.6.0
..0.0.3.1.1.2.2..2.2.1.1.0.0.0..2.2.1.1.0.0.0..2.2.1.1.0.0.0..2.2.1.1.0.0.0

Crossrefs

Sequence in context: A103783 A103515 A198054 * A197962 A259534 A176680

Adjacent sequences: A202755 A202756 A202757 * A202759 A202760 A202761

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved