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A224277 Number of nX4 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing 1
130, 4580, 84132, 1334973, 21348990, 356222482, 6172817040, 109166159263, 1947747629183, 34864494529806, 624634228911233, 11192898789327524, 200562963738597382, 3593689853465024489, 64389966977277732381 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A224281
LINKS
FORMULA
Empirical recurrence of order 52 (see link above)
EXAMPLE
Some solutions for n=3
..0..0..1..2....1..1..2..1....3..1..1..1....0..0..0..0....1..2..2..1
..1..1..2..1....1..2..3..3....3..1..1..1....1..1..2..2....2..3..2..1
..1..2..1..0....3..3..3..0....2..1..1..1....2..2..2..1....3..3..3..0
CROSSREFS
Sequence in context: A223983 A224060 A224046 * A224200 A333900 A224122
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved

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Last modified July 23 18:56 EDT 2024. Contains 374553 sequences. (Running on oeis4.)