A223872 - OEIS

%I #4 Mar 28 2013 10:14:10

%S 130,16900,1336985,88682677,5941888105,411716468431,28928809433978,

%T 2033941972287214,142745781634483746,10010372252279889400,

%U 701993937730379495973,49234252523359799838831,3453202734892638263202801

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

%C Column 4 of A223876

%H R. H. Hardin, <a href="/A223872/b223872.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 28 2013