Integer a(n) produces the least positive integer coefficient of x^n in the n-th iteration of g.f. A(x) where A(0)=0.
A119815
Integer a(n) produces the least positive integer coefficient of x^n in the n-th iteration of g.f. A(x) where A(0)=0.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =1a(5) =-11a(6) =23a(7) =-20a(8) =731a(9) =-4860a(10) =-91205a(11) =138329a(12) =24813133a(13) =222203538a(14) =-11857627480a(15) =-340590475934
External references
- oeis: A119815