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A300179
Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1
16, 512, 16208, 513832, 16288960, 516368256, 16369174784, 518912313824, 16449820393120, 521468820137344, 16530863182211264, 524037923251710208, 16612305236616613760, 526619683480028961920, 16694148528966490951424
OFFSET
1,1
COMMENTS
Column 5 of A300182.
LINKS
FORMULA
Empirical: a(n) = 26*a(n-1) +158*a(n-2) +696*a(n-3) +756*a(n-4) +236*a(n-5) -3520*a(n-6) -640*a(n-7) -1792*a(n-8) +4096*a(n-9)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..0..1
..0..0..1..0..0. .1..0..1..0..1. .0..1..0..1..1. .1..0..1..1..0
..1..1..1..1..1. .0..1..0..0..0. .0..1..0..1..0. .1..0..1..0..1
..1..1..1..0..0. .0..0..0..0..1. .0..0..0..1..1. .1..0..1..0..1
CROSSREFS
Cf. A300182.
Sequence in context: A301404 A303424 A317514 * A013825 A099772 A041483
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2018
STATUS
approved