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A221084 Number of nX5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor 1
8, 1155, 154440, 20489472, 2714713664, 359601021696, 47632473997312, 6309330479063040, 835724490894491648, 110698808144126017536, 14662997339235235397632, 1942238532303972543234048 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A221087
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 01 2013
STATUS
approved

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Last modified April 24 14:23 EDT 2024. Contains 371960 sequences. (Running on oeis4.)