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 A086778 #4 Mar 31 2012 13:20:49 %S A086778 1,144,461280,36211968000,70794513504000000,3457427279866560000000000, %T A086778 4220654362961578542000000000000000, %U A086778 128805138489674665490472000000000000000000000 %N A086778 Number of n X n matrices over GF(5) with rank n-1. %F A086778 For n>=2: a(n) = product j=0...n-2 (5^n - 5^j)^2 / (5^(n-1)- 5^j). %Y A086778 Cf. A085404, A053292, A060870. %K A086778 nonn %O A086778 1,2 %A A086778 Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 03 2003 %E A086778 More terms from _David Wasserman_, Mar 28 2005