a(n) = n + (n+1)^(n+2).A155499a(n) = n + (n+1)^(n+2).Terms a(0) =1a(1) =9a(2) =83a(3) =1027a(4) =15629a(5) =279941a(6) =5764807a(7) =134217735a(8) =3486784409a(9) =100000000009External referencesoeis: A155499