a(n) is the denominator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.
A370554
a(n) is the denominator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =3a(4) =12a(5) =24a(6) =252a(7) =56a(8) =18144a(9) =5184a(10) =199584a(11) =33264a(12) =2395008a(13) =48384a(14) =50295168a(15) =100590336a(16) =804722688a(17) =146313216a(18) =137607579648a(19) =6552741888
External references
- oeis: A370554