E.g.f. BesselI(0,2*sqrt(2)*x) + BesselI(1,2*sqrt(2)*x)/sqrt(2).

Terms

a(0) =1a(1) =1a(2) =4a(3) =6a(4) =24a(5) =40a(6) =160a(7) =280a(8) =1120a(9) =2016a(10) =8064a(11) =14784a(12) =59136a(13) =109824a(14) =439296a(15) =823680a(16) =3294720a(17) =6223360a(18) =24893440a(19) =47297536a(20) =189190144a(21) =361181184a(22) =1444724736a(23) =2769055744a(24) =11076222976a(25) =21300428800a(26) =85201715200a(27) =164317593600