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A236497 Number of (n+1)X(3+1) 0..3 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock 1
19856, 404844, 8124056, 142835932, 2727955642, 52554367064, 1025983223760, 19095015395876, 366962215793842, 6990844356616700, 134711005690894338, 2546420278253752464, 48854198593454329848, 929727095141846903596 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236500

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A252206 A206508 A206058 * A194197 A250703 A256653

Adjacent sequences:  A236494 A236495 A236496 * A236498 A236499 A236500

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2014

STATUS

approved

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Last modified October 25 20:31 EDT 2021. Contains 348256 sequences. (Running on oeis4.)