E.g.f. satisfies: A(x) = Sum_{n>=0} x^n/n! * Product_{k=0..n-1} A(u(n)^k*x), where u(n) = exp(2*Pi*I/n) is an n-th root of unity.
A206724
E.g.f. satisfies: A(x) = Sum_{n>=0} x^n/n! * Product_{k=0..n-1} A(u(n)^k*x), where u(n) = exp(2*Pi*I/n) is an n-th root of unity.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =65a(5) =326a(6) =3697a(7) =25880a(8) =420177a(9) =4229146a(10) =86320361a(11) =949523972a(12) =27083479909a(13) =352085238818
External references
- oeis: A206724