A232062 - OEIS

A232062

Number of nX5 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically, with no adjacent values equal

10, 66, 410, 2230, 13538, 75462, 457234, 2561258, 15454594, 86936482, 522543518, 2950310558, 17671662754, 100103295530, 597736686594, 3395879611978, 20221409303002, 115182855491730, 684186672548350, 3906272828605434

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OFFSET

1,1

COMMENTS

Column 5 of A232065

LINKS

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

FORMULA

Empirical: a(n) = 2*a(n-1) +30*a(n-2) -47*a(n-3) +39*a(n-4) -191*a(n-5) +159*a(n-6) -134*a(n-7) +378*a(n-8) -242*a(n-9) +203*a(n-10) -439*a(n-11) +179*a(n-12) -147*a(n-13) +281*a(n-14) -62*a(n-15) +49*a(n-16) -87*a(n-17) +8*a(n-18) -6*a(n-19) +10*a(n-20) for n>22

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Sequence in context: A177452 A033504 A163615 * A229003 A117305 A250790

Adjacent sequences: A232059 A232060 A232061 * A232063 A232064 A232065

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2013

STATUS

approved