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A210411 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having three or four distinct values, and new values 0..3 introduced in row major order 1
1176192, 2633043200, 5718722907600, 12464482425454304, 27156404472228366416, 59168572189285825092176, 128916198765144572103220336, 280882175302904664142569808512, 611985080884296483153754366288624 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A210413

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A114677 A172591 A250962 * A204777 A236718 A189408

Adjacent sequences:  A210408 A210409 A210410 * A210412 A210413 A210414

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 21 2012

STATUS

approved

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Last modified November 30 21:20 EST 2021. Contains 349426 sequences. (Running on oeis4.)