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A253861 Number of (n+2) X (6+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically. 1

%I #6 May 03 2021 15:00:04

%S 3727552,196953728,9090451328,440235663616,20237970640000,

%T 940320056130304,43112542683771520,1976682724770244608,

%U 90524327137135129728,4159684840083660465152,190684378608442052140160

%N Number of (n+2) X (6+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically.

%C Column 6 of A253863.

%H R. H. Hardin, <a href="/A253861/b253861.txt">Table of n, a(n) for n = 1..184</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A253863.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 17 2015

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)