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 A138548 #7 Aug 13 2018 14:25:45 %S A138548 1,0,5,1,63,46,1135,1800,25431,66232,666387,2397605,19650565,87187842, %T A138548 633498229,3214996309,21829972815,120665223560,790528831099, %U A138548 4613644505799,29715748525937,179604102525370,1149406514424945 %N A138548 Central moment sequence of tr(A^6) in USp(6). %C A138548 If A is a random matrix in the compact group USp(6) (6x6 complex matrices that are unitary and symplectic), then a(n)=E[(tr(A^6)+1)^n] is the n-th central moment of the trace of A^6, since E[tr(A^6)] = -1 (see A138546). %H A138548 Kiran S. Kedlaya and Andrew V. Sutherland, <a href="http://arXiv.org/abs/0803.4462">Hyperelliptic curves, L-polynomials and random matrices</a>, arXiv:0803.4462 [math.NT], 2008-2010. %F A138548 mgf is A(z)=e^zF(z) where F(z) is the mgf of A138546. %e A138548 a(5) = 46 because E[(tr(A^6)+1)^5] = 46 for a random matrix A in USp(6). %Y A138548 Cf. A138540, A138546. %K A138548 nonn %O A138548 0,3 %A A138548 _Andrew V. Sutherland_, Mar 24 2008