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A224278 Number of nX5 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

%I A224278 #6 Jul 23 2025 05:04:05
%S A224278 296,17723,442089,8073038,137489538,2425304290,45275725025,
%T A224278 883012703273,17667432461262,358042017265316,7298750316970616,
%U A224278 149179000331610043,3052840234754205390,62514535525552969948,1280625241031012026560
%N A224278 Number of nX5 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.
%C A224278 Column 5 of A224281
%H A224278 R. H. Hardin, <a href="/A224278/b224278.txt">Table of n, a(n) for n = 1..210</a>
%e A224278 Some solutions for n=3
%e A224278 ..0..0..0..0..1....0..0..0..1..3....0..0..0..1..0....1..1..2..2..1
%e A224278 ..0..0..2..1..0....0..2..3..3..0....0..0..2..1..1....1..2..2..3..1
%e A224278 ..3..3..3..3..0....3..3..3..3..3....2..3..3..3..3....2..2..3..2..2
%K A224278 nonn
%O A224278 1,1
%A A224278 _R. H. Hardin_ Apr 02 2013