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 A296917 #6 Dec 23 2017 00:11:30 %S A296917 1,-30,415,-3500,20023,-81622,241605,-517360,780286,-782108,463310, %T A296917 -121020,0 %N A296917 List of coefficients of chromatic polynomial of icosahedron, highest order terms first. %D A296917 N. Biggs, Algebraic Graph Theory, 2nd ed. Cambridge University Press, 1993. See p. 69. %e A296917 The polynomial is x^12 - 30*x^11 + 415*x^10 - 3500*x^9 + 20023*x^8 - 81622*x^7 + 241605*x^6 - 517360*x^5 + 780286*x^4 - 782108*x^3 + 463310*x^2 - 121020*x. %Y A296917 Cf. A296916, A218514. %K A296917 sign %O A296917 1,2 %A A296917 _N. J. A. Sloane_, Dec 22 2017