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A214161 Number of 0..5 colorings of an nX4 array circular in the 4 direction with new values 0..5 introduced in row major order 1
4, 337, 88261, 27240856, 8548472292, 2687052137887, 844765198701963, 265584804041291390, 83497056404973808506, 26250596837942857641941, 8252911849410478325131985, 2594628782449337737766700740 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A214166
LINKS
FORMULA
Empirical: a(n) = 370*a(n-1) -18411*a(n-2) +297448*a(n-3) -1839799*a(n-4) +4424682*a(n-5) -4113757*a(n-6) +1249468*a(n-7)
EXAMPLE
Some solutions for n=4
..0..1..0..1....0..1..2..1....0..1..0..1....0..1..0..1....0..1..2..1
..1..2..1..0....3..0..1..4....1..2..1..0....1..2..1..2....1..2..0..2
..0..1..2..1....5..1..3..1....0..1..0..1....0..1..0..3....2..3..4..3
..1..0..3..4....0..2..5..2....2..3..1..4....3..0..1..4....1..2..3..2
CROSSREFS
Sequence in context: A220646 A352657 A173367 * A265868 A239293 A295997
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 05 2012
STATUS
approved

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Last modified July 18 03:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)