a(n) = n^n + (n+1)^n.A098462a(n) = n^n + (n+1)^n.Terms a(0) =2a(1) =3a(2) =13a(3) =91a(4) =881a(5) =10901a(6) =164305a(7) =2920695a(8) =59823937a(9) =1387420489a(10) =35937424601External referencesoeis: A098462