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A284336 Number of 3 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero. 1
4, 13, 49, 373, 2259, 18114, 120058, 959041, 6725380, 53524100, 389145239, 3078502323, 22909373317, 180462930528, 1364622501692, 10722180215723, 81993405397067, 643447267719348, 4960055945696896, 38910411283028492 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A284334.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

CROSSREFS

Cf. A284334.

Sequence in context: A149453 A149454 A101125 * A230081 A299699 A056275

Adjacent sequences: A284333 A284334 A284335 * A284337 A284338 A284339

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 25 2017

STATUS

approved

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Last modified March 28 01:55 EDT 2023. Contains 361576 sequences. (Running on oeis4.)