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A300178 Number of nX4 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
8, 128, 2033, 32321, 513832, 8168705, 129863167, 2064518282, 32820974441, 521776133213, 8295010668576, 131871117920269, 2096439948834819, 33328453784142714, 529843858517908445, 8423268484861943881 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A300182.
LINKS
FORMULA
Empirical: a(n) = 14*a(n-1) +27*a(n-2) +51*a(n-3) -10*a(n-4) -a(n-5) -10*a(n-6)
EXAMPLE
Some solutions for n=5
..0..0..0..0. .0..0..0..1. .0..0..0..1. .0..0..0..1. .0..0..0..1
..0..1..1..1. .0..1..0..0. .0..0..1..1. .1..0..0..0. .0..1..1..1
..1..0..1..1. .0..1..1..0. .0..0..0..1. .0..0..0..0. .0..1..0..0
..1..0..1..1. .0..1..1..1. .1..0..1..0. .0..0..1..0. .0..0..0..0
..1..1..0..1. .1..1..1..1. .1..1..1..0. .0..1..1..1. .1..1..0..0
CROSSREFS
Cf. A300182.
Sequence in context: A303423 A301403 A317513 * A013777 A183497 A370102
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2018
STATUS
approved

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Last modified July 20 08:27 EDT 2024. Contains 374442 sequences. (Running on oeis4.)