This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A069380 #18 Apr 30 2024 16:28:51 %S A069380 31,781,18621,433809,10056959,232824241,5388274121,124693133113, %T A069380 2885579381831,66776768695477,1545323639404349,35761396310047985, %U A069380 827579980089997079,19151628770974955241,443201843190147840905 %N A069380 Number of n X 5 binary arrays with a path of adjacent 1's from top row to bottom row. %H A069380 Sean A. Irvine, <a href="/A069380/b069380.txt">Table of n, a(n) for n = 1..200</a> %Y A069380 Column 5 of A359576. %Y A069380 Cf. 1 X n A000225, 2 X n A005061, n X 2 A001333, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452. %K A069380 nonn %O A069380 1,1 %A A069380 _R. H. Hardin_, Mar 22 2002