A217508 Number of triangular nXnXn arrays of occupancy after each element either stays or moves to some neighbor and with no occupancy greater than 6

1, 10, 351, 47518, 25005523, 51075839126

Offset

1,2

Comments

Column 6 of A217510

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=4
.....0........0........0........3........2........3........3........0
....0.2......3.1......0.1......0.0......0.0......2.0......1.1......4.1
...1.6.1....2.3.1....4.3.1....2.1.2....0.2.2....1.0.2....1.0.1....0.1.1
..0.0.0.0..0.0.0.0..0.0.0.1..0.1.1.0..1.2.1.0..1.1.0.0..0.3.0.0..1.2.0.0

Crossrefs

Sequence in context: A132093 A339411 A217507 * A217509 A016101 A249847

Adjacent sequences: A217505 A217506 A217507 * A217509 A217510 A217511

Keyword

nonn

Author

R. H. Hardin Oct 05 2012

Status

approved