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A282588 Number of nX3 0..1 arrays with no 1 equal to more than two of its king-move neighbors, with the exception of exactly two elements. 1
0, 4, 84, 533, 4083, 28060, 184242, 1182850, 7409734, 45609366, 276724198, 1658667528, 9840740297, 57872157985, 337740023639, 1957812305494, 11281512922724, 64661940248355, 368849449666421, 2094922016941952 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A282593.

LINKS

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

FORMULA

Empirical: a(n) = 15*a(n-1) -69*a(n-2) +62*a(n-3) +96*a(n-4) +756*a(n-5) -1957*a(n-6) -768*a(n-7) -354*a(n-8) +10259*a(n-9) -6393*a(n-10) -2754*a(n-11) -8562*a(n-12) +16887*a(n-13) -12150*a(n-14) +829*a(n-15) +13200*a(n-16) -11862*a(n-17) +3042*a(n-18) +1776*a(n-19) -3528*a(n-20) +1396*a(n-21) +72*a(n-22) -216*a(n-23) +216*a(n-24)

EXAMPLE

Some solutions for n=4

..0..0..1. .1..1..0. .1..0..1. .0..1..1. .1..0..1. .0..0..1. .1..1..1

..1..1..0. .0..0..1. .0..0..1. .0..0..0. .1..0..1. .1..1..0. .1..0..1

..0..1..0. .0..0..1. .0..1..1. .0..1..1. .1..0..1. .0..1..0. .0..0..1

..1..0..1. .1..1..1. .1..0..0. .1..1..0. .1..1..0. .0..0..1. .0..0..0

CROSSREFS

Cf. A282593.

Sequence in context: A102982 A231741 A172138 * A178208 A069441 A203095

Adjacent sequences:  A282585 A282586 A282587 * A282589 A282590 A282591

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 19 2017

STATUS

approved

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Last modified February 21 22:56 EST 2018. Contains 299427 sequences. (Running on oeis4.)