A163050 Number of n X 6 binary arrays with all 1s connected, and all corners 1.

1, 41, 1481, 53431, 1988608, 75185550, 2858390497, 108836266497, 4145512873039, 157910294056161, 6015134806184686, 229128809508106006, 8727976198925510591, 332465983185265194899, 12664289218561492194081, 482407896954688881104335, 18375873551767418664373370

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..500

Crossrefs

Column 6 of A389687.

Sequence in context: A239251 A197527 A076462 * A305863 A180667 A281608

Adjacent sequences: A163047 A163048 A163049 * A163051 A163052 A163053

Keyword

nonn

Author

R. H. Hardin, Jul 20 2009

Extensions

a(12) onward from Andrew Howroyd, Oct 26 2025

Status

approved