A197858 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 0,0,4,1,1,1,1 for x=0,1,2,3,4,5,6

1, 3, 0, 1, 137, 323, 6362, 284887, 8484223, 2050369516

Offset

1,2

Comments

Every 0 is next to 0 0's, every 1 is next to 1 0's, every 2 is next to 2 4's, every 3 is next to 3 1'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..10.

Example

Some solutions with all values from 0 to 6 for 8X8X8
.........1................1................1................1
........1.0..............0.1..............1.0..............0.1
.......1.5.1............1.1.1............1.5.1............3.1.3
......0.1.1.1..........1.5.1.0..........0.1.1.3..........1.1.4.1
.....1.1.4.0.1........1.0.1.2.1........1.2.1.0.1........1.0.1.2.0
....1.4.2.1.1.4......4.1.1.4.4.1......1.4.4.1.1.4......4.1.1.4.1.1
...0.1.3.1.6.1.1....1.1.6.1.1.1.0....0.1.1.1.6.1.1....1.1.5.3.1.6.1
..1.1.1.0.1.1.0.1..1.0.1.1.0.3.1.1..1.1.1.0.1.1.0.1..1.0.1.1.0.1.1.0

Crossrefs

Sequence in context: A226780 A270880 A217580 * A060861 A067169 A257927

Adjacent sequences: A197855 A197856 A197857 * A197859 A197860 A197861

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved