Primes of the form (k+1)^k + k^(k-1), k >= 1.A054461Primes of the form (k+1)^k + k^(k-1), k >= 1.Terms a(0) =3a(1) =11a(2) =73a(3) =45143873a(4) =1043046721External referencesoeis: A054461