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A236655 Number of (n+1)X(2+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock 1
2896, 70896, 1680044, 41161740, 1012773632, 24759554960, 605124123248, 14808403341412, 362355875717384, 8864560404002524, 216868775687376872, 5305866579511115792, 129810446666488607476, 3175848379804617003632 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236657

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A235575 A281657 A234886 * A235822 A235825 A235580

Adjacent sequences:  A236652 A236653 A236654 * A236656 A236657 A236658

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 29 2014

STATUS

approved

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Last modified August 11 12:12 EDT 2022. Contains 356065 sequences. (Running on oeis4.)