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 A221157 #14 Aug 29 2020 07:14:44
%S A221157 8,456,27780,1691690,103015508,6273056950,381992581548,23261112447444,
%T A221157 1416465537909008,86254456382365422,5252391281433321840,
%U A221157 319839870650458477666,19476375116903366115612,1185997189541765630381252,72220283556802506132778356,4397792341346509099717980618,267799799794395524429805470412,16307439552264147863293668460374
%N A221157 Number of compositions of the grid graph G_{4,n}.
%H A221157 Frank Simon, <a href="https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa-101154">Algebraic Methods for Computing the Reliability of Networks</a>, Dissertation, Doctor Rerum Naturalium (Dr. rer. nat.), Fakultät Mathematik und Naturwissenschaften der Technischen Universität Dresden, 2012.
%Y A221157 Cf. A108808, A145835.
%K A221157 nonn
%O A221157 1,1
%A A221157 _N. J. A. Sloane_, Jan 04 2013