G.f.: Product_{n>=1} [Product_{k=0..2*n} (1 - k*x)^(-(-1)^k*binomial(2*n,k))]^(1/n).
A195983
G.f.: Product_{n>=1} [Product_{k=0..2*n} (1 - k*x)^(-(-1)^k*binomial(2*n,k))]^(1/n).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =7a(5) =32a(6) =189a(7) =1382a(8) =12090a(9) =123220a(10) =1433760a(11) =18750856a(12) =272243150a(13) =4344694984a(14) =75590125814
External references
- oeis: A195983