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 A069374 #12 Apr 30 2024 01:51:15 %S A069374 1,1607521,495614587553,82853403589520257,10256458966072649273929, %T A069374 1069417093564753820998582233,100099925835731660944886693417081, %U A069374 8714066994599676287858417413924705585,720709612102200019966620721128569172999001 %N A069374 Number of 16 X n binary arrays with a path of adjacent 1's from top row to bottom row. %Y A069374 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 A069374 nonn %O A069374 1,2 %A A069374 _R. H. Hardin_, Mar 22 2002 %E A069374 a(5)-a(9) from _Sean A. Irvine_, Apr 30 2024