A163005 Number of n X 5 binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.

1, 49, 1193, 24455, 482443, 9469361, 185899132, 3650755085, 71703384184, 1408344201283, 27661780849317, 543315030292163, 10671446719498293, 209601732562410408, 4116863153169917525, 80860792337380041052, 1588215952287338777449, 31194721668334602778742

Offset

1,2

Links

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

Crossrefs

Row 5 of A359573.

Sequence in context: A264877 A173246 A017765 * A161694 A162469 A162204

Adjacent sequences: A163002 A163003 A163004 * A163006 A163007 A163008

Keyword

nonn

Author

R. H. Hardin, Jul 20 2009

Extensions

a(18) onward from Andrew Howroyd, Oct 27 2025

Status

approved