The On-Line Encyclopedia of Integer Sequences (OEIS)

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A286977

Number of n X 6 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.
(history; published version)

#6 by Wesley Ivan Hurt at Sun Apr 05 23:30:23 EDT 2020

STATUS

editing

approved

#5 by Wesley Ivan Hurt at Sun Apr 05 23:30:13 EDT 2020

NAME

Number of nX6 n X 6 0..1 arrays with the number of 1s 1's horizontally or vertically adjacent to some 0 two less than the number of 0s 0's adjacent to some 1.

STATUS

approved

editing

#4 by R. H. Hardin at Wed May 17 14:50:22 EDT 2017

STATUS

editing

approved

#3 by R. H. Hardin at Wed May 17 14:50:19 EDT 2017

LINKS

R. H. Hardin, <a href="/A286977/b286977.txt">Table of n, a(n) for n = 1..38</a>

#2 by R. H. Hardin at Wed May 17 14:50:03 EDT 2017

NAME

allocated for R. H. Hardin

Number of nX6 0..1 arrays with the number of 1s horizontally or vertically adjacent to some 0 two less than the number of 0s adjacent to some 1.

DATA

1, 520, 32253, 1853532, 108110791, 6394436704, 382399996325, 23061514189084, 1399727072882973, 85393260809630392, 5231506248052898794, 321628304145152717720, 19832505642478450579224, 1226074610187600024235498

OFFSET

1,2

COMMENTS

Column 6 of A286979.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A286979.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, May 17 2017

STATUS

approved

editing

#1 by R. H. Hardin at Wed May 17 14:45:20 EDT 2017

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved