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A237002 Number of (n+1)X(3+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal 1
5288, 79164, 1150036, 22056220, 411646536, 8124638140, 158569999540, 3140246502408, 61933486884504, 1227200207914348, 24281736510050872, 481242897954184144, 9533140821129343856, 188962382433686427052 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A237007

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A234994 A223341 A270798 * A178027 A053397 A300365

Adjacent sequences:  A236999 A237000 A237001 * A237003 A237004 A237005

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 02 2014

STATUS

approved

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Last modified February 25 18:37 EST 2021. Contains 341618 sequences. (Running on oeis4.)