E.g.f.: exp(2*x) * (BesselI(0,2*x) - BesselI(1,2*x)) / (sec(x) + tan(x)).

A337446

E.g.f.: exp(2*x) * (BesselI(0,2*x) - BesselI(1,2*x)) / (sec(x) + tan(x)).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =3a(5) =-9a(6) =5a(7) =-235a(8) =35a(9) =-5939a(10) =10773a(11) =-199746a(12) =961521a(13) =-10506833a(14) =82135911a(15) =-836458064a(16) =8282576627a(17) =-90730736923

External references