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A235953 Number of (n+1)X(7+1) 0..2 arrays colored with the upper median value of each 2X2 subblock 1
58896, 18468, 4884, 7320, 9260, 14440, 21288, 29328, 41748, 57760, 83202, 117312, 164264, 231040, 333776, 469248, 657056, 924160, 1335104, 1876992, 2628224, 3696640, 5340416, 7507968, 10512896, 14786560, 21361664, 30031872, 42051584 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A235954

LINKS

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

FORMULA

Empirical: a(n) = 4*a(n-4) for n>15

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A157131 A217603 A205233 * A321826 A255893 A046323

Adjacent sequences:  A235950 A235951 A235952 * A235954 A235955 A235956

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 17 2014

STATUS

approved

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Last modified November 14 17:24 EST 2019. Contains 329126 sequences. (Running on oeis4.)