a(n) = (n^2+1)^n.A014050a(n) = (n^2+1)^n.Terms a(0) =1a(1) =2a(2) =25a(3) =1000a(4) =83521a(5) =11881376a(6) =2565726409a(7) =781250000000External referencesoeis: A014050