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A184194 Half the number of (n+1)X7 binary arrays with no 2X2 subblock containing exactly one 1 1
1908, 90185, 3901193, 174401423, 7751834608, 345350598641, 15380031974284, 685056630399242, 30513075478492147, 1359098254767356165, 60536202458667509811, 2696372582587335783277, 120100441888134027505701 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A184197

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A355891 A206124 A251463 * A209551 A238059 A186789

Adjacent sequences:  A184191 A184192 A184193 * A184195 A184196 A184197

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified October 3 04:21 EDT 2022. Contains 357230 sequences. (Running on oeis4.)