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A298069 Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero. 1
0, 54, 953, 13350, 302143, 7794251, 180902016, 4321153141, 102552409457, 2453761654793, 58598441957270, 1398559408845196, 33406481023496985, 797830290769560556, 19053436159307289623, 455043131244674608337 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A298070.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A298070.

Sequence in context: A247048 A280479 A107420 * A281776 A160345 A324952

Adjacent sequences: A298066 A298067 A298068 * A298070 A298071 A298072

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2018

STATUS

approved

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Last modified March 27 12:57 EDT 2023. Contains 361570 sequences. (Running on oeis4.)