a(n) is the denominator of the real part of Product_{k=1..n} (1/k + i) where i is the imaginary unit.
A370548
a(n) is the denominator of the real part of Product_{k=1..n} (1/k + i) where i is the imaginary unit.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =12a(4) =12a(5) =72a(6) =252a(7) =2016a(8) =18144a(9) =36288a(10) =199584a(11) =2395008a(12) =2395008a(13) =33530112a(14) =50295168a(15) =804722688a(16) =804722688a(17) =14485008384a(18) =137607579648a(19) =550430318592
External references
- oeis: A370548