a(n) = n! * [x^n] exp(2*n*x)*BesselI(0,2*x)^n.

A294454

a(n) = n! * [x^n] exp(2*n*x)*BesselI(0,2*x)^n.

Terms

    a(0) =1a(1) =2a(2) =20a(3) =324a(4) =7336a(5) =213500a(6) =7593744a(7) =319195800a(8) =15481238224a(9) =850968357228

External references