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 A202793 Number of nX6 binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically 1

%I

%S 21,2820,182430,10892633,669872090,41382940317,2552520578945,

%T 157398925950921,9706685199080140,598614098605286252,

%U 36916537177815949777,2276641091540314028026,140400382336831018887599

%N Number of nX6 binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically

%C Column 6 of A202795

%H R. H. Hardin, <a href="/A202793/b202793.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 59*a(n-1) -96*a(n-2) +15198*a(n-3) +44555*a(n-4) +546802*a(n-5) +2654703*a(n-6) -11605935*a(n-7) -50148646*a(n-8) -109619761*a(n-9) -489848269*a(n-10) +2807188309*a(n-11) +13538187787*a(n-12) -14006226585*a(n-13) -84978170899*a(n-14) +5293728878*a(n-15) +168471311892*a(n-16) +81639123840*a(n-17) +53515556371*a(n-18) -81576024670*a(n-19) -376950186859*a(n-20) -165736793100*a(n-21) -12429982950*a(n-22) +165840234156*a(n-23) +312039809784*a(n-24) +124310784240*a(n-25) +34336444320*a(n-26) -46415278368*a(n-27) -79007876928*a(n-28) -33286629888*a(n-29) -11428107264*a(n-30)

%e Some solutions for n=2

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 24 2011

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Last modified March 20 22:57 EDT 2023. Contains 361392 sequences. (Running on oeis4.)