A163024 Number of n X 7 binary arrays with all 1s connected and a path of 1s from left column to lower right corner.

1, 408, 53767, 4854639, 385935282, 29335294083, 2190944084653, 162386197946814, 11992595454849300, 884134510006217315, 65124293805618497731, 4794839622177925147509, 352943999580269068697395, 25976841081018860950123866, 1911791141755399554132773412, 140695721909712958231745282442

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..200

Crossrefs

Row 7 of A391489.

Sequence in context: A285767 A386813 A282479 * A283948 A069298 A255797

Adjacent sequences: A163021 A163022 A163023 * A163025 A163026 A163027

Keyword

nonn

Author

R. H. Hardin, Jul 20 2009

Extensions

a(9) onward from Andrew Howroyd, Dec 22 2025

Status

approved