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 A069387 #13 Apr 30 2024 20:43:48 %S A069387 4095,16245775,60131384705,210502738714097,714097521397778495, %T A069387 2380826437768134741023,7862987107940658832635809, %U A069387 25834416752721407468468718385,84641600245355780352751022513463,276889755885138056467643815501003447,905061607197623234620822097612564300097 %N A069387 Number of n X 12 binary arrays with a path of adjacent 1's from top row to bottom row. %H A069387 Sean A. Irvine, <a href="/A069387/b069387.txt">Table of n, a(n) for n = 1..100</a> %Y A069387 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 A069387 nonn %O A069387 1,1 %A A069387 _R. H. Hardin_, Mar 22 2002 %E A069387 More terms from _Sean A. Irvine_, Apr 30 2024