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A224387 Number of nX4 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing 1

%I

%S 35,1225,27790,497958,8573507,152271025,2780848289,51325449985,

%T 949582166068,17572045403455,325249748226217,6022221071267123,

%U 111533443784218247,2065901802649317374,38268294526698715055

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

%C Column 4 of A224391

%H R. H. Hardin, <a href="/A224387/b224387.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A224387/a224387.txt">Empirical recurrence of order 47</a>

%F Empirical recurrence of order 47 (see link above)

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 05 2013

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Last modified February 26 03:24 EST 2020. Contains 332272 sequences. (Running on oeis4.)