A186015 - OEIS

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A186015

1/8192 the number of (n+2) X 7 0..3 arrays with no 3 X 3 subblock trace equal to any horizontal or vertical neighbor 3 X 3 subblock trace.

294396948, 1574001377834, 8896022678225044, 50262815203472669902, 283178106619218127407323, 1595416034937751138022369826, 8989089860728323984726287971908, 50647264481612304867053099566842986

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 5 of A186019.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..26

EXAMPLE

Some solutions for 4 X 7

..2..0..2..2..1..0..2....2..0..2..0..1..0..3....2..0..2..3..1..0..3

..0..0..0..0..1..2..1....0..0..0..0..0..1..3....0..0..0..0..2..2..1

..0..0..0..0..0..2..0....0..0..0..0..0..1..1....0..0..0..0..0..2..0