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A223677 Number of nX5 0..1 arrays with rows and antidiagonals unimodal 1


%S 16,256,3177,35509,384009,4106403,43632367,462307835,4893189359,

%T 51766786082,547539109894,5790804006475,61241515380486,

%U 647657786582245,6849233638750700,72433084682283498,766004610399351979

%N Number of nX5 0..1 arrays with rows and antidiagonals unimodal

%C Column 5 of A223680

%H R. H. Hardin, <a href="/A223677/b223677.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 16*a(n-1) -65*a(n-2) +116*a(n-3) -387*a(n-4) -316*a(n-5) +5502*a(n-6) -6052*a(n-7) -5304*a(n-8) +10256*a(n-9) -13182*a(n-10) +1596*a(n-11) +36430*a(n-12) -48912*a(n-13) +27205*a(n-14) -2186*a(n-15) -10400*a(n-16) +7800*a(n-17) -2128*a(n-18) +192*a(n-19)

%e Some solutions for n=3

%e ..0..0..0..0..0....0..0..0..1..0....1..0..0..0..0....0..0..1..1..1

%e ..0..0..1..0..0....1..1..1..1..0....0..0..1..0..0....1..1..1..1..0

%e ..0..0..0..1..0....0..1..1..1..1....0..0..0..1..0....0..0..0..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 25 2013

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Last modified December 2 05:01 EST 2021. Contains 349437 sequences. (Running on oeis4.)