G.f. satisfies: A(x) = Sum_{n>=0} x^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.
A206725
G.f. satisfies: A(x) = Sum_{n>=0} x^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) =2a(3) =3a(4) =7a(5) =8a(6) =25a(7) =26a(8) =95a(9) =143a(10) =384a(11) =385a(12) =2030a(13) =2031a(14) =7519a(15) =13114a(16) =45435a(17) =45436a(18) =215811a(19) =215812a(20) =1081077a(21) =1652010a(22) =5091830a(23) =5091831a(24) =31815975a(25) =34705543a(26) =131929631a(27) =218433121a(28) =833547968a(29) =833547969
External references
- oeis: A206725