A163741 Number of n X 10 binary arrays with all 1s connected, all corners 1, and no 1 having more than two 1's adjacent.

1, 42, 1011, 7059, 62437, 654365, 10879878, 186355072, 2887094703, 40677495197, 542863742334, 7063732066584, 91281103574031, 1179512880606149, 15223682056178560, 195550038896848970, 2494133784128213246, 31582660926472658960, 397515052621013769741, 4979929880685367391773

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Crossrefs

Row 10 of A391819.

Sequence in context: A036400 A221050 A050988 * A140404 A075511 A016094

Adjacent sequences: A163738 A163739 A163740 * A163742 A163743 A163744

Keyword

nonn

Author

R. H. Hardin, Aug 03 2009

Extensions

a(7) onward from Andrew Howroyd, Dec 24 2025

Status

approved