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 A192345 #7 Nov 13 2012 08:22:15 %S A192345 0,1,2,17,48,245,850,3709,14016,57817,225890,912473,3610800,14470637, %T A192345 57541426,229912165,915917568,3655472497,14572774850,58135559777, %U A192345 231822774960,924665246117,3687589909522,14707675592461,58656853828800,233942936910025 %N A192345 Constant term of the reduction of n-th polynomial at A161516 by x^2->x+1. %C A192345 For an introduction to reductions of polynomials by substitutions such as x^2->x+1, see A192232. %F A192345 Empirical G.f.: x^2*(3*x^2+1)/(9*x^4+6*x^3-10*x^2-2*x+1). [_Colin Barker_, Nov 13 2012] %e A192345 (See A192344.) %t A192345 (See A192344.) %Y A192345 Cf. A192232, A192344. %K A192345 nonn %O A192345 1,3 %A A192345 _Clark Kimberling_, Jun 28 2011