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 A069371 #12 Apr 30 2024 01:51:05 %S A069371 1,114243,3355201895,59610217019311,827579980089997079, %T A069371 9979493366382754619551,110135446775389136829629647, %U A069371 1145175890285973091225709069559,11416514838646336435351220608498495,110348288974297906676696735021969395495 %N A069371 Number of 13 X n binary arrays with a path of adjacent 1's from top row to bottom row. %Y A069371 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 A069371 nonn %O A069371 1,2 %A A069371 _R. H. Hardin_, Mar 22 2002 %E A069371 a(6)-a(10) from _Sean A. Irvine_, Apr 30 2024