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A205472 Number of (n+1)X6 0..2 arrays with every 2X2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order 1
2709, 61978, 1504556, 38649376, 1002405121, 26272023365, 690109737187, 18179839278978, 479230888858502, 12644948875816236, 333720627683258097, 8810523515340428257, 232623501031146386321, 6142757563889683779852 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A205475

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A031550 A083615 A205750 * A252430 A031622 A234551

Adjacent sequences:  A205469 A205470 A205471 * A205473 A205474 A205475

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 27 2012

STATUS

approved

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Last modified December 8 03:17 EST 2021. Contains 349590 sequences. (Running on oeis4.)