A163002 Number of n X n binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.

1, 3, 45, 2423, 482443, 360923899, 1012326365581, 10583931453268587, 410628432970492896401, 58940807698860767759080097, 31235684611422395105793077154373, 61025622782775877079925551890952450707, 439058030866550268551946597005515209497083151

Offset: 1

Author

R. H. Hardin, Jul 20 2009

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..15

Crossrefs

Main diagonal of A359573.

Extensions

a(8)-a(11) from Andrew Howroyd, Jan 06 2023

Terms a(12) and beyond from Andrew Howroyd, Jan 30 2023