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A251218 Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having zero or two 1s 1
1477, 17119, 206715, 2746607, 35978029, 482274751, 6424279907, 86110233175, 1151625700234, 15428988432635, 206554265595500, 2766688606209457, 37049013254772388, 496208364895357327, 6645304659025154869 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A251219

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A157505 A290723 A187531 * A188363 A334687 A255789

Adjacent sequences: A251215 A251216 A251217 * A251219 A251220 A251221

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 30 2014

STATUS

approved

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Last modified February 3 18:43 EST 2023. Contains 360044 sequences. (Running on oeis4.)