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A224277 Number of nX4 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing 1

%I

%S 130,4580,84132,1334973,21348990,356222482,6172817040,109166159263,

%T 1947747629183,34864494529806,624634228911233,11192898789327524,

%U 200562963738597382,3593689853465024489,64389966977277732381

%N Number of nX4 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing

%C Column 4 of A224281

%H R. H. Hardin, <a href="/A224277/b224277.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A224277/a224277.txt">Empirical recurrence of order 52</a>

%F Empirical recurrence of order 52 (see link above)

%e Some solutions for n=3

%e ..0..0..1..2....1..1..2..1....3..1..1..1....0..0..0..0....1..2..2..1

%e ..1..1..2..1....1..2..3..3....3..1..1..1....1..1..2..2....2..3..2..1

%e ..1..2..1..0....3..3..3..0....2..1..1..1....2..2..2..1....3..3..3..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 02 2013

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Last modified August 8 21:55 EDT 2022. Contains 356016 sequences. (Running on oeis4.)