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A253957 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
82064, 1022752, 15946360, 240903042, 3624943928, 55018824334, 841599218625, 12790357848678, 195129091152213, 2966622722008784, 45227470200104949, 687980379217768688, 10480983155284038177, 159465825628277468824 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A253961

LINKS

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

EXAMPLE

Some solutions for n=1

..1..0..1..0..0..0....1..0..0..1..1..0....0..0..1..0..0..0....0..1..1..0..1..1

..0..1..1..1..0..1....1..1..0..1..0..1....1..0..1..0..0..0....1..0..0..1..0..0

..0..0..1..0..0..0....1..0..0..1..1..1....1..1..1..1..0..1....1..0..1..0..1..0

CROSSREFS

Sequence in context: A146025 A283418 A330872 * A253964 A253760 A204667

Adjacent sequences:  A253954 A253955 A253956 * A253958 A253959 A253960

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2015

STATUS

approved

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Last modified April 19 08:59 EDT 2021. Contains 343110 sequences. (Running on oeis4.)