A163053 Number of nX9 binary arrays with all 1s connected, and all corners 1

1, 577, 191285, 54271807, 15044778941, 4145512873039

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Crossrefs

Sequence in context: A221331 A163042 A069365 * A097770 A252377 A252376

Adjacent sequences: A163050 A163051 A163052 * A163054 A163055 A163056

Keyword

nonn

Author

R. H. Hardin Jul 20 2009

Status

approved