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 A236083 Number of (n+1)X(1+1) 0..3 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock 1

%I

%S 256,2400,22506,211560,1998580,18841712,177646290,1674513256,

%T 15787986826,148843166800,1403280508044,13229588080992,

%U 124726066140698,1175883681522224,11085965466380794,104515595490058104

%N Number of (n+1)X(1+1) 0..3 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock

%C Column 1 of A236087

%H R. H. Hardin, <a href="/A236083/b236083.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 224*a(n-3) +2810*a(n-4) +13856*a(n-5) +90672*a(n-6) +291072*a(n-7) +952484*a(n-8) +1912080*a(n-9) -1157526*a(n-10) -12079672*a(n-11) -80765163*a(n-12) -186815512*a(n-13) -311515244*a(n-14) -242959664*a(n-15) +1413551712*a(n-16) +3132342592*a(n-17) +6646937984*a(n-18) +3604272384*a(n-19) -10896930560*a(n-20) -17680504832*a(n-21) -26707124224*a(n-22) +5417844736*a(n-23) +14742724608*a(n-24) +16130326528*a(n-25) +19947962368*a(n-26) -13724549120*a(n-27) +9831972864*a(n-28) -12022972416*a(n-29)

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 19 2014

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Last modified December 9 04:38 EST 2021. Contains 349626 sequences. (Running on oeis4.)