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Number of n X n binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.
2

%I #12 Jan 30 2023 21:05:54

%S 1,3,45,2423,482443,360923899,1012326365581,10583931453268587,

%T 410628432970492896401,58940807698860767759080097,

%U 31235684611422395105793077154373,61025622782775877079925551890952450707,439058030866550268551946597005515209497083151

%N Number of n X n binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.

%H Andrew Howroyd, <a href="/A163002/b163002.txt">Table of n, a(n) for n = 1..15</a>

%Y Main diagonal of A359573.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 20 2009

%E a(8)-a(11) from _Andrew Howroyd_, Jan 06 2023

%E Terms a(12) and beyond from _Andrew Howroyd_, Jan 30 2023