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A298138 Number of nX7 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. 1
0, 34, 6, 185, 627, 3417, 14422, 73961, 354200, 1772595, 8807624, 44087860, 218942205, 1093100404, 5447861031, 27173970577, 135547796845, 676389434363, 3374295032672, 16836823878509, 84007635799139, 419167042007303 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A298139.

LINKS

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

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

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

CROSSREFS

Cf. A298139.

Sequence in context: A269482 A037933 A297875 * A071788 A220133 A300101

Adjacent sequences:  A298135 A298136 A298137 * A298139 A298140 A298141

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 13 2018

STATUS

approved

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)