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A230065 Number of nX5 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j) 1
0, 225, 3645, 281961, 14082255, 793041921, 43142680647, 2369158188849, 129763431348327, 7112485499815809, 389766441753947727, 21360486977871231969, 1170607520117723187375, 64152453401987618058561 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A230068

LINKS

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

FORMULA

Empirical: a(n) = 59*a(n-1) -13572*a(n-3) +53018*a(n-4) -4614*a(n-5) -84248*a(n-6) +5703584*a(n-7) -22239144*a(n-8) -30968*a(n-9) +2695936*a(n-10) -13901184*a(n-11) +54290432*a(n-12) -1462272*a(n-13) +65536*a(n-15) -1048576*a(n-16) for n>19

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A134741 A110204 A180697 * A218813 A330819 A297760

Adjacent sequences:  A230062 A230063 A230064 * A230066 A230067 A230068

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 08 2013

STATUS

approved

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Last modified May 25 18:25 EDT 2022. Contains 354071 sequences. (Running on oeis4.)