E.g.f. W = W(x,m) satisfies: W = E(x*W,m) where E(x,m) = cn(i*x,m) - i*sn(i*x,m), with sn(x,m) and cn(x,m) being Jacobi elliptic functions, read as an irregular triangle of coefficients T(n,k) of x^n*m^k for n>=0 and k=0..[n/2].
A290580
E.g.f. W = W(x,m) satisfies: W = E(x*W,m) where E(x,m) = cn(i*x,m) - i*sn(i*x,m), with sn(x,m) and cn(x,m) being Jacobi elliptic functions, read as an irregular triangle of coefficients T(n,k) of x^n*m^k for n>=0 and k=0..[n/2].
Terms
- a(0) =1a(1) =1a(2) =3a(3) =0a(4) =16a(5) =1a(6) =125a(7) =20a(8) =0a(9) =1296a(10) =364a(11) =1a(12) =16807a(13) =7028a(14) =112a(15) =0a(16) =262144a(17) =148752a(18) =5868a(19) =1a(20) =4782969a(21) =3471192a(22) =250128a(23) =576a(24) =0a(25) =100000000a(26) =89097664a(27) =10020912a(28) =82408a(29) =1
External references
- oeis: A290580