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A253764 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally and vertically 9
512, 2992, 2992, 16544, 23096, 16544, 82064, 164120, 164120, 82064, 423232, 1135439, 1622944, 1135439, 423232, 2154496, 8385264, 17235224, 17235224, 8385264, 2154496, 11244672, 60838168, 180950650, 259418152, 180950650 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......512......2992.......16544........82064.........423232..........2154496

.....2992.....23096......164120......1135439........8385264.........60838168

....16544....164120.....1622944.....17235224......180950650.......1922908527

....82064...1135439....17235224....259418152.....3910850069......59192461388

...423232...8385264...180950650...3910850069....84039781656....1846710080356

..2154496..60838168..1922908527..59192461388..1846710080356...58500640474944

.11244672.447022128.20282915690.905139371305.40521984254512.1850596722079477

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..262

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 8] for n>15

EXAMPLE

Some solutions for n=2 k=4

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

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

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

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

CROSSREFS

Sequence in context: A253801 A253794 A253961 * A253757 A250139 A254168

Adjacent sequences:  A253761 A253762 A253763 * A253765 A253766 A253767

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 11 2015

STATUS

approved

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Last modified October 21 09:09 EDT 2020. Contains 337911 sequences. (Running on oeis4.)