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%I #4 Mar 13 2014 13:37:50
%S 13,142,1440,14685,150265,1536541,15708373,160597823,1641932577,
%T 16786876051,171626395117,1754681817378,17939597892019,
%U 183411695776421,1875173019958413,19171481102053119,196006279918074880
%N Number of nX2 0..4 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it, modulo 5
%C Column 2 of A239256
%H R. H. Hardin, <a href="/A239250/b239250.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 16*a(n-1) -78*a(n-2) +264*a(n-3) -870*a(n-4) +1596*a(n-5) -52*a(n-6) -7238*a(n-7) +36698*a(n-8) -130198*a(n-9) +247568*a(n-10) -332087*a(n-11) +481080*a(n-12) +81284*a(n-13) -1582141*a(n-14) +1105684*a(n-15) +830880*a(n-16) -102044*a(n-17) -849619*a(n-18) -1884476*a(n-19) +1023696*a(n-20) +3161818*a(n-21) -2161900*a(n-22) -2172976*a(n-23) +3526016*a(n-24) -1687296*a(n-25)
%e Some solutions for n=5
%e ..2..0....3..2....0..0....0..0....0..2....2..2....3..2....4..2....2..0....3..0
%e ..0..4....2..1....3..2....0..3....0..4....2..1....3..0....3..0....4..2....0..2
%e ..2..1....2..2....0..0....4..2....2..1....3..2....4..4....2..4....4..1....2..0
%e ..3..2....2..2....3..2....4..3....2..0....2..2....4..4....3..1....0..3....4..2
%e ..4..4....2..0....0..4....0..3....4..2....2..2....4..2....2..4....2..1....2..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 13 2014
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