A209967 - OEIS

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A209967

Number of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or two distinct values, and new values 0..3 introduced in row major order

17262, 3745144, 795773818, 176163769267, 38303320167422, 8191570949391204, 1725096441495004196, 358792884816460002669, 73884793608220074063313, 15095735190392461348923878, 3065184253013978227031816509

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

OFFSET

1,1

COMMENTS

Column 6 of A209969

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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