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A184204 Number of (n+1)X7 binary arrays with no 2X2 subblock containing fewer than two 1s 1
3268, 158648, 6468501, 281420718, 12021784217, 516844071813, 22178227663588, 952294826074262, 40881902344878662, 1755168245685353119, 75352500961047758574, 3235038360513128954137, 138886585051318322739473 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A184207

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A220594 A101706 A251273 * A031820 A048959 A237085

Adjacent sequences:  A184201 A184202 A184203 * A184205 A184206 A184207

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified December 8 22:49 EST 2021. Contains 349596 sequences. (Running on oeis4.)