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A222141 Number of nX5 0..4 arrays with no entry increasing mod 5 by 4 rightwards or downwards, starting with upper left zero 2
256, 114244, 50999956, 22767656980, 10164078082036, 4537511642094436, 2025664524518719732, 904309916809657591444, 403707729455406641892052, 180225747607432250658675940, 80457513519867024627155058004 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A222144

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 542*a(n-1) -45648*a(n-2) +1362782*a(n-3) -14182035*a(n-4) -10420216*a(n-5) +672452128*a(n-6) -1495546560*a(n-7)

EXAMPLE

Some solutions for n=3

..0..1..4..4..0....0..0..1..3..0....0..0..0..0..0....0..1..3..3..0

..0..1..4..4..1....0..1..2..4..0....0..1..1..1..1....0..2..4..4..1

..0..1..4..2..4....0..1..2..2..2....0..1..1..3..1....0..0..0..1..3

CROSSREFS

Sequence in context: A205927 A223354 A236941 * A333585 A185924 A013997

Adjacent sequences:  A222138 A222139 A222140 * A222142 A222143 A222144

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2013

STATUS

approved

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Last modified June 26 07:39 EDT 2022. Contains 354877 sequences. (Running on oeis4.)