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A298901 Number of nX7 0..1 arrays with every element equal to 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
0, 8, 12, 56, 471, 4689, 44186, 522001, 5379458, 62969638, 689301117, 7995632432, 89669878606, 1030894396261, 11694235466700, 133810754113662, 1523947269885410, 17410346219635865, 198543925466100523 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A298902.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A298902.

Sequence in context: A022668 A286360 A212815 * A305236 A069186 A166625

Adjacent sequences:  A298898 A298899 A298900 * A298902 A298903 A298904

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 28 2018

STATUS

approved

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Last modified October 17 16:51 EDT 2019. Contains 328120 sequences. (Running on oeis4.)