a(n) = (1/2) * the imaginary part of Product_{k = 0..n} 1 + k*sqrt(-4).
A363414
a(n) = (1/2) * the imaginary part of Product_{k = 0..n} 1 + k*sqrt(-4).
Terms
- a(0) =0a(1) =1a(2) =3a(3) =-18a(4) =-190a(5) =1035a(6) =25305a(7) =-120260a(8) =-5954940a(9) =22115925a(10) =2197084175a(11) =-5141457750a(13) =769657081375
External references
- oeis: A363414