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A300262 Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1
4, 26, 95, 375, 1526, 6198, 25034, 101312, 410252, 1660983, 6724306, 27224178, 110221701, 446249130, 1806706543, 7314734637, 29614856373, 119900405862, 485435683612, 1965362943182, 7957081971789, 32215501878934, 130429542917213 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A300267.

LINKS

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

FORMULA

Empirical: a(n) = 6*a(n-1) -8*a(n-2) +4*a(n-3) -16*a(n-4) -3*a(n-5) +32*a(n-6) +13*a(n-7) +28*a(n-8) -91*a(n-9) +46*a(n-10) +5*a(n-11) +79*a(n-12) -38*a(n-13) -24*a(n-14) -22*a(n-15) -23*a(n-16) -7*a(n-17) +4*a(n-18) for n>19

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300267.

Sequence in context: A299003 A299670 A299748 * A222663 A267675 A140804

Adjacent sequences:  A300259 A300260 A300261 * A300263 A300264 A300265

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 01 2018

STATUS

approved

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Last modified April 18 22:08 EDT 2019. Contains 322237 sequences. (Running on oeis4.)