A297822 - OEIS

A297822

Number of nX7 0..1 arrays with every element equal to 1, 2 or 3 king-move adjacent elements, with upper left element zero.

8, 1933, 3124, 13417, 43931, 146530, 467104, 1485611, 4742326, 15121792, 48148189, 153781266, 492324793, 1577859150, 5058924132, 16225860490, 52059118956, 167096376917, 536508689557, 1723053505342, 5534994384618, 17783715046733

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OFFSET

1,1

COMMENTS

Column 7 of A297823.

LINKS

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

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A297823.

Sequence in context: A160302 A002672 A027515 * A297992 A298845 A298652

Adjacent sequences: A297819 A297820 A297821 * A297823 A297824 A297825

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2018

STATUS

approved