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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

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

R. H. Hardin, Empirical recurrence of order 52

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

Adjacent sequences:  A224274 A224275 A224276 * A224278 A224279 A224280

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 02 2013

STATUS

approved

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Last modified June 26 03:19 EDT 2022. Contains 354871 sequences. (Running on oeis4.)