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A298777 Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1
1, 1, 6, 2, 4, 7, 8, 15, 23, 38, 61, 99, 160, 259, 419, 678, 1097, 1775, 2872, 4647, 7519, 12166, 19685, 31851, 51536, 83387, 134923, 218310, 353233, 571543, 924776, 1496319, 2421095, 3917414, 6338509, 10255923, 16594432, 26850355, 43444787 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 3 of A298782.

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +a(n-2) for n>7

EXAMPLE

All solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A298782.

Sequence in context: A202244 A257535 A020831 * A156590 A135617 A019930

Adjacent sequences:  A298774 A298775 A298776 * A298778 A298779 A298780

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2018

STATUS

approved

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Last modified March 26 04:32 EDT 2019. Contains 321481 sequences. (Running on oeis4.)