a(n) = 9^(2*n) + 1.A063270a(n) = 9^(2*n) + 1.Terms a(0) =2a(1) =82a(2) =6562a(3) =531442a(4) =43046722a(5) =3486784402a(6) =282429536482External referencesoeis: A063270