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 A069375 #13 Apr 30 2024 01:51:19 %S A069375 1,3880899,2619907077991,924641917817567951,237352251546695064748799, %T A069375 50795719326331833996195206079,9696254618636612444218190874702879, %U A069375 1713983459379227954401499595005207140375,286972358244899249912531978641142152093799951 %N A069375 Number of 17 X n binary arrays with a path of adjacent 1's from top row to bottom row. %Y A069375 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 A069375 nonn %O A069375 1,2 %A A069375 _R. H. Hardin_, Mar 22 2002 %E A069375 a(5)-a(9) from _Sean A. Irvine_, Apr 30 2024