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A298095 Number of nX3 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1
0, 1, 0, 1, 0, 3, 0, 7, 2, 19, 10, 53, 42, 153, 156, 453, 548, 1367, 1860, 4187, 6182, 12967, 20270, 40489, 65870, 127181, 212768, 401209, 684456, 1269547, 2195656, 4025967, 7029770, 12786683, 22476818, 40655069, 71799858, 129360321, 229208420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Column 3 of A298100.

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +2*a(n-2) -a(n-3) +a(n-4) -2*a(n-5)

EXAMPLE

All solutions for n=8

..0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0

..0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0. .0..0..0

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

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

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

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

..1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1

..1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1. .1..1..1

CROSSREFS

Cf. A298100.

Sequence in context: A175918 A265205 A263210 * A327803 A199667 A181163

Adjacent sequences:  A298092 A298093 A298094 * A298096 A298097 A298098

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 12 2018

STATUS

approved

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Last modified December 2 07:16 EST 2021. Contains 349437 sequences. (Running on oeis4.)