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 A214822 #11 Apr 05 2018 22:42:06 %S A214822 0,0,1,6,30,211,1350,9636,69169,513012,3843024,29107494 %N A214822 Number of genus 1 unsensed hypermaps with n darts. %H A214822 Timothy R. Walsh, <a href="http://www.info2.uqam.ca/~walsh_t/papers/GENERATING NONISOMORPHIC.pdf">Space-efficient generation of nonisomorphic maps and hypermaps</a> %H A214822 T. R. Walsh, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL18/Walsh/walsh3.html">Space-Efficient Generation of Nonisomorphic Maps and Hypermaps</a>, J. Int. Seq. 18 (2015) # 15.4.3 %Y A214822 Cf. A090371, A118094, A214819, A214820, A057005; A214821-A214823, A215017, A215018. %K A214822 nonn,more %O A214822 1,4 %A A214822 _N. J. A. Sloane_, Aug 01 2012