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A260541 Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001 1

%I

%S 582,976,2226,4398,9184,21050,40916,87410,201208,402848,821864,

%T 1875468,3915914,7859688,17346634,37355368,75700214,161905666,

%U 352069138,727251892,1527430530,3306328274,6942964498,14500464116,31097174670

%N Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001

%C Column 5 of A260544

%H R. H. Hardin, <a href="/A260541/b260541.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 10*a(n-3) +15*a(n-4) +a(n-5) -31*a(n-6) -97*a(n-7) -101*a(n-8) +45*a(n-9) +215*a(n-10) +438*a(n-11) +371*a(n-12) -224*a(n-13) -899*a(n-14) -1291*a(n-15) -974*a(n-16) +744*a(n-17) +2755*a(n-18) +3017*a(n-19) +1910*a(n-20) -3252*a(n-21) -5726*a(n-22) -6017*a(n-23) -1511*a(n-24) +7287*a(n-25) +9229*a(n-26) +9360*a(n-27) +522*a(n-28) -6813*a(n-29) -8389*a(n-30) -11476*a(n-31) -2691*a(n-32) +5711*a(n-33) +534*a(n-34) +12628*a(n-35) +440*a(n-36) -1143*a(n-37) +1372*a(n-38) -7359*a(n-39) +2358*a(n-40) -3274*a(n-41) +1777*a(n-42) +442*a(n-43) -467*a(n-44) +1568*a(n-45) -1166*a(n-46) +811*a(n-47) -313*a(n-48) -155*a(n-49) +271*a(n-50) -374*a(n-51) +246*a(n-52) -123*a(n-53) +53*a(n-54) +12*a(n-55) -22*a(n-56) +14*a(n-57) -8*a(n-58) +2*a(n-59) for n>63

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A260544

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 28 2015

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Last modified June 25 17:46 EDT 2022. Contains 354851 sequences. (Running on oeis4.)