Imaginary part of Product_{k = 1..n} (k + i), i = sqrt(-1).
A231531
Imaginary part of Product_{k = 1..n} (k + i), i = sqrt(-1).
Terms
- a(0) =0a(1) =1a(2) =3a(3) =10a(4) =40a(5) =190a(6) =1050a(7) =6620a(8) =46800a(9) =365300a(10) =3103100a(11) =28269800a(12) =271627200a(13) =2691559000a(14) =26495469000a(15) =238131478000
External references
- oeis: A231531