a(n) = Product_{k=0..n} (k^3+1).A255433a(n) = Product_{k=0..n} (k^3+1).Terms a(0) =1a(1) =2a(2) =18a(3) =504a(4) =32760a(5) =4127760a(6) =895723920a(7) =308129028480External referencesoeis: A255433