A198093 - OEIS

A198093

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

1, 5, 23, 181, 2682, 76326, 3762043, 354138576, 62665720459

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Every 0 is next to 0 6'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 2's, every 5 is next to 5 2'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..............0..............0..............0

.......1.1............1.1............2.2............1.1............3.0

......1.6.1..........1.6.1..........2.5.2..........1.6.1..........0.2.2

.....0.1.1.0........0.1.1.0........2.4.2.0........0.1.1.0........0.2.5.2

....0.2.2.2.2......0.2.2.2.2......2.0.2.1.1......2.2.2.2.0......1.1.2.4.2

...3.2.5.4.0.2....3.2.5.4.5.2....0.2.2.1.6.1....2.5.4.0.2.3....1.6.1.2.0.2

..0.0.2.2.2.2.0..0.0.2.2.2.2.0..0.3.0.0.1.1.0..0.2.2.2.2.0.0..0.1.1.0.2.2.0

CROSSREFS

Sequence in context: A305127 A332688 A198026 * A197792 A197793 A203115

Adjacent sequences: A198090 A198091 A198092 * A198094 A198095 A198096

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2011

STATUS

approved