G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n/n * Product_{d|n} A(n*x^d/d) ).
A205498
G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n/n * Product_{d|n} A(n*x^d/d) ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =63a(6) =329a(7) =2291a(8) =21986a(9) =293295a(10) =5493212a(11) =145199609a(12) =5435890215a(13) =288986265721
External references
- oeis: A205498