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 A254266 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #4 Jan 27 2015 10:30:45

%S 4351908,15380009,21120938,98883824,214982444,933774220,3756830312,

%T 12919040677,55925981338,221330313736,941086616376,4132513530611,

%U 18293591609024,84175293829595,391626609393534,1839470200869462

%N Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Row 7 of A254260

%H R. H. Hardin, <a href="/A254266/b254266.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A254266/a254266.txt">Empirical recurrence of order 65</a>

%F Empirical recurrence of order 65 (see link above)

%e Some solutions for n=1

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

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 27 2015

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Last modified September 7 12:42 EDT 2024. Contains 375730 sequences. (Running on oeis4.)