a(n) is the denominator of the real part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.

A370552

a(n) is the denominator of the real part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =12a(4) =4a(5) =72a(6) =9a(7) =2016a(8) =2016a(9) =36288a(10) =1512a(11) =2395008a(12) =342144a(13) =33530112a(14) =2095632a(15) =804722688a(16) =12773376a(17) =14485008384a(18) =905313024a(19) =550430318592a(20) =16679706624

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