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A185794 Number of (n+1)X6 binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum 1
676, 1408, 3196, 9368, 23064, 61676, 149828, 433296, 1073036, 3000848, 7423780, 21476064, 53645816, 153197812, 383014100, 1109241856, 2792472812, 8043408452, 20257150840, 58652173360, 148613711308, 429039760096, 1086671505564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A185798

LINKS

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

Robert Israel, Linear recurrence of order 120 for n >= 123

Robert Israel, Maple-assisted derivation of recurrence

FORMULA

Linear recurrence of order 120 for n >= 123 (see links). - Robert Israel, Oct 31 2019

EXAMPLE

Some solutions for 3X6

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

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

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

CROSSREFS

Sequence in context: A309787 A064963 A300984 * A253330 A255076 A253323

Adjacent sequences:  A185791 A185792 A185793 * A185795 A185796 A185797

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 04 2011

STATUS

approved

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Last modified August 12 08:40 EDT 2022. Contains 356067 sequences. (Running on oeis4.)