a(n) = Product_{j=1..n, k=1..n} (j^3 + k^3 + n^3).A368720a(n) = Product_{j=1..n, k=1..n} (j^3 + k^3 + n^3).Terms a(0) =1a(1) =3a(2) =69360External referencesoeis: A368720