A236017 - OEIS

%I #4 Jan 18 2014 14:03:10

%S 278352,471308,1059410,2218212,5955918,15065380,46936958,106489596,

%T 303207968,743343900,2188773486,5233806436,15136464648,36955782900,

%U 107935763678,260965085900,753356059708,1846172999084,5364518774126

%N Number of (n+1)X(7+1) 0..2 arrays colored with the sum of the maximum and minimum values of each 2X2 subblock

%C Column 7 of A236018

%H R. H. Hardin, <a href="/A236017/b236017.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 5*a(n-2) +26*a(n-4) -26*a(n-6) -27*a(n-8) -1747*a(n-10) -272*a(n-12) -37717*a(n-14) -62475*a(n-16) +342630*a(n-18) +839939*a(n-20) +4400241*a(n-22) +2441946*a(n-24) -9127258*a(n-26) -22859130*a(n-28) -161997232*a(n-30) -301797384*a(n-32) -438054576*a(n-34) +1413159680*a(n-36) +3841915520*a(n-38) -400228160*a(n-40) -851565568*a(n-42) -1236199808*a(n-44) -2446382592*a(n-46) +1411232256*a(n-48) +27648000*a(n-50) +944087040*a(n-52) +199065600*a(n-54) -1658880000*a(n-56) for n>63

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 18 2014