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A231520 Number of nX5 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors 1

%I #5 Aug 11 2014 22:45:55

%S 12,342,4665,70462,1031105,15000701,219937967,3222629836,47159743290,

%T 690399979855,10108622083346,147993608472149,2166661772771563,

%U 31720960292577983,464409247083163776,6799146031063407846

%N Number of nX5 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors

%C Column 5 of A231523

%H R. H. Hardin, <a href="/A231520/b231520.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A231520/a231520.txt">Empirical recurrence of order 70</a>

%F Empirical recurrence of order 70 (see link above)

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 10 2013

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Last modified June 25 15:24 EDT 2024. Contains 373705 sequences. (Running on oeis4.)