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A295840 Number of n X n 0..1 arrays with each 1 adjacent to 1 or 2 king-move neighboring 1's. 0
1, 11, 104, 3472, 333366, 68406015, 39611268638, 58299712744084, 215161140627491789, 2072082954330213350831, 50904335335986557283096575, 3201040036319851813019243143047 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A295847.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A295847.

Sequence in context: A077250 A356128 A173851 * A158470 A163933 A099839

Adjacent sequences:  A295837 A295838 A295839 * A295841 A295842 A295843

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2017

STATUS

approved

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Last modified August 19 04:53 EDT 2022. Contains 356216 sequences. (Running on oeis4.)