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 A069298 #11 Apr 25 2024 06:42:30 %S A069298 408,85776,14226710,2112274668,295545642334,39959490285500, %T A069298 5292500285670344,692128295029569712,89798972465698310480, %U A069298 11592951743199556912876,1491945234246315077238684,191623912389094140723074272 %N A069298 Number of n X 7 binary arrays with a path of adjacent 1's from upper left corner to anywhere in right hand column. %Y A069298 Cf. n X 2 A002450, n X 3 A069294, n X 4 A069295, n X 5 A069296, n X 6 A069297, n X 8 A069299, n X 9 A069300, n X 10 A069301, n X 11 A069302, n X 12 A069303, n X 13 A069304, n X 14 A069305, read by rows A069306-A069320. %K A069298 nonn %O A069298 2,1 %A A069298 _R. H. Hardin_, Mar 14 2002 %E A069298 a(7)-a(13) from _Sean A. Irvine_, Apr 25 2024