Expansion of e.g.f. x*exp(x)*cosh(x)*sinh(x).

Terms

a(0) =0a(1) =0a(2) =2a(3) =6a(4) =28a(5) =100a(6) =366a(7) =1274a(8) =4376a(9) =14760a(10) =49210a(11) =162382a(12) =531444a(13) =1727180a(14) =5580134a(15) =17936130a(16) =57395632a(17) =182948560a(18) =581130738a(19) =1840247318a(20) =5811307340a(21) =18305618100a(22) =57531942622a(23) =180441092746a(24) =564859072968