a(n) is the numerator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.
A370553
a(n) is the numerator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =5a(4) =19a(5) =35a(6) =331a(7) =65a(8) =18265a(9) =4433a(10) =141349a(11) =18863a(12) =1035215a(13) =14705a(14) =9158903a(15) =6702403a(16) =-34376687a(17) =-21392575a(18) =-33594289475a(19) =-2206770805a(21) =-617315066615
External references
- oeis: A370553