login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A197852
Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,6,0,0,1,1,1 for x=0,1,2,3,4,5,6
0
1, 4, 12, 81, 893, 15724, 461526, 21160235, 1588993194, 193123531704, 38467394450377
OFFSET
1,2
COMMENTS
Every 0 is next to 0 6's, every 1 is next to 1 6's, every 2 is next to 2 0'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
EXAMPLE
Some solutions with all values from 0 to 6 for 8X8X8
.........0................0................0................2
........1.1..............1.1..............1.1..............0.0
.......1.6.1............1.6.1............1.6.1............0.1.1
......4.1.1.0..........4.1.1.0..........0.1.1.4..........3.1.6.1
.....1.1.5.0.3........1.1.5.2.0........3.0.5.1.1........0.0.1.1.0
....1.6.1.1.1.0......1.6.1.1.1.0......0.1.1.1.6.1......1.1.5.1.1.2
...0.1.1.1.6.1.0....0.1.1.1.6.1.0....3.1.6.1.1.1.2....1.6.1.1.6.1.0
..2.0.0.0.1.1.2.0..0.3.0.0.1.1.2.0..0.0.1.1.0.2.0.0..0.1.1.4.1.1.0.2
CROSSREFS
Sequence in context: A299795 A351736 A010370 * A362384 A305334 A205337
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 18 2011
STATUS
approved

  NODES
orte 1
see 1
Story 1