E.g.f. exp(x)*BesselI(2,2*sqrt(2)*x)/2.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =14a(5) =50a(6) =195a(7) =721a(8) =2716a(9) =10116a(10) =37845a(11) =141295a(12) =528330a(13) =1975766a(14) =7395479a(15) =27698685a(16) =103821240a(17) =389410568a(18) =1461605481a(19) =5489516955a(20) =20630539910a(21) =77579118330a(22) =291893775019