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A184028 1/8 the number of (n+1)X9 0..3 arrays with all 2X2 subblock sums the same 0
89044, 117321, 165929, 271176, 477919, 950430, 1994441, 4552710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A184029

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for 4X9

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

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

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

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

CROSSREFS

Sequence in context: A233038 A205835 A237902 * A209896 A255390 A205290

Adjacent sequences:  A184025 A184026 A184027 * A184029 A184030 A184031

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 08 2011

STATUS

approved

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Last modified May 7 08:42 EDT 2021. Contains 343636 sequences. (Running on oeis4.)