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A224286
Number of 7Xn 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing
1
16384, 16000000, 537465766, 6172817040, 45275725025, 274116529912, 1597855917875, 9622753439382, 59980603070388, 376494813177039, 2313407919278369, 13634051825496929, 76116429236458083, 400003671053134168
OFFSET
1,1
COMMENTS
Row 7 of A224281
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0
..0..2..0....2..2..2....3..0..0....0..0..0....0..0..0....3..2..2....3..2..0
..2..2..2....3..2..2....3..2..0....1..2..0....0..1..0....2..2..0....3..0..0
..2..2..2....3..2..2....3..2..2....2..1..0....1..0..0....2..3..2....3..1..0
..3..3..2....2..2..2....3..2..1....1..2..1....3..3..1....3..3..0....2..3..0
CROSSREFS
Sequence in context: A016963 A224396 A224029 * A224209 A017035 A326252
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved