a(n) = (n^(2*n+1) + 1) / (n+1).A179897a(n) = (n^(2*n+1) + 1) / (n+1).Terms a(0) =1a(1) =1a(2) =11a(3) =547a(4) =52429a(5) =8138021a(6) =1865813431a(7) =593445188743External referencesoeis: A179897