A221084 Number of nX5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor

8, 1155, 154440, 20489472, 2714713664, 359601021696, 47632473997312, 6309330479063040, 835724490894491648, 110698808144126017536, 14662997339235235397632, 1942238532303972543234048

Offset

1,1

Comments

Column 5 of A221087

Links

R. H. Hardin, Table of n, a(n) for n = 1..30

Formula

Empirical: a(n) = 192*a(n-1) -9248*a(n-2) +195456*a(n-3) -2093824*a(n-4) +11781120*a(n-5) -34549760*a(n-6) +52838400*a(n-7) -40501248*a(n-8) +13369344*a(n-9) -1048576*a(n-10)

Example

Some solutions for n=3
..0..1..3..1..0....0..1..2..0..1....0..2..1..1..0....0..2..3..1..0
..0..1..1..4..1....0..3..0..3..2....1..2..1..3..1....0..3..0..1..1
..1..1..0..1..0....1..0..0..2..0....1..0..0..1..1....0..1..2..1..0

Crossrefs

Sequence in context: A229164 A357543 A003767 * A117084 A201985 A301614

Adjacent sequences: A221081 A221082 A221083 * A221085 A221086 A221087

Keyword

nonn

Author

R. H. Hardin Jan 01 2013

Status

approved