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 A053071 #5 May 10 2013 12:44:17 %S A053071 0,2,48,4480,2887680,5373624320,44196975083520,1442855588252876800, %T A053071 188570467779447305011200,98800579402758985681259724800, %U A053071 207089099087390763078860569942425600 %N A053071 Number of n X n invertible binary matrices A such that A^5+I is invertible. %D A053071 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished. %Y A053071 Cf. A002820, A051680, A053060. %K A053071 nonn %O A053071 1,2 %A A053071 _Vladeta Jovovic_, Mar 18 2000