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 A258605 Number of (n+2)X(1+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum 1

%I #4 Jun 05 2015 10:06:07

%S 7500,76729,682356,6056521,46060932,354117124,2476716772,17477633209,

%T 115323919920,766785689569,4857669976665,30962324784400,

%U 190429804895616,1176883728336121,7081348901202170,42770630476678225,253149492547824624

%N Number of (n+2)X(1+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum

%C Column 1 of A258612

%H R. H. Hardin, <a href="/A258605/b258605.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%Y Cf. A258612

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 05 2015

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Last modified June 1 03:55 EDT 2023. Contains 363068 sequences. (Running on oeis4.)