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A235440 Number of (n+1)X(4+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise 1
11100, 606279, 37115629, 1957598978, 105025440136, 4689618011086, 213149442840795, 8137410774396649, 316806854119735304, 10529263700505157069, 357031453053915561568, 10500030926110350648033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235441

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..20

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A253378 A253371 A204226 * A235405 A158619 A094324

Adjacent sequences:  A235437 A235438 A235439 * A235441 A235442 A235443

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 10 2014

STATUS

approved

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Last modified September 20 10:10 EDT 2019. Contains 327229 sequences. (Running on oeis4.)