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A254393 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
136868, 4766957, 175329586, 6208345944, 222379798148, 7980237415038, 285530733637470, 10224170138575374, 366155468467164564, 13110454447845138796, 469453431201506217004, 16810175913187595698224 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A254390
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0....0..1..0....0..0..1....1..0..0....0..0..0....0..1..0....0..0..0
..1..1..1....1..0..0....0..1..1....0..1..1....0..0..1....1..0..1....1..1..1
..1..0..1....1..1..1....1..1..1....0..1..1....0..1..1....1..0..1....0..0..1
..0..0..1....0..1..0....1..1..0....1..0..1....0..0..1....1..1..0....1..1..1
..1..0..0....0..1..1....1..0..0....1..0..1....0..1..1....0..1..1....0..1..0
..0..0..1....0..0..1....1..0..1....0..0..0....0..0..0....0..0..1....1..0..0
CROSSREFS
Sequence in context: A232143 A237470 A254386 * A253981 A191819 A015071
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2015
STATUS
approved

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Last modified September 8 02:36 EDT 2024. Contains 375749 sequences. (Running on oeis4.)