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A217245 T(n,k)=Number of triangular nXnXn arrays of occupancy after each element moves to some neighbor and with no occupancy greater than k. 5
0, 0, 1, 0, 7, 1, 0, 7, 95, 1, 0, 7, 161, 6437, 1, 0, 7, 182, 17957, 1175140, 1, 0, 7, 182, 22484, 6839199, 660602643, 1, 0, 7, 182, 22694, 10146841, 9594137076 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

.0.........0..........0........0.....0...0.0.0

.1.........7..........7........7.....7...7.7

.1........95........161......182...182.182

.1......6437......17957....22484.22694

.1...1175140....6839199.10146841

.1.660602643.9594137076

LINKS

Table of n, a(n) for n=1..34.

EXAMPLE

Some solutions for n=4 k=3

.....1........2........0........1........0........2........0........1

....2.0......1.0......3.1......0.2......2.0......1.2......0.2......1.1

...2.1.0....1.0.3....1.1.0....0.0.2....0.2.2....0.0.0....1.2.1....3.0.3

..1.2.1.0..1.1.1.0..1.1.1.1..2.3.0.0..1.3.0.0..2.2.1.0..0.3.1.0..1.0.0.0

CROSSREFS

Sequence in context: A198611 A298853 A198212 * A154098 A324007 A176442

Adjacent sequences:  A217242 A217243 A217244 * A217246 A217247 A217248

KEYWORD

nonn,tabl,hard,more

AUTHOR

R. H. Hardin Sep 28 2012

STATUS

approved

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Last modified March 30 19:28 EDT 2020. Contains 333127 sequences. (Running on oeis4.)