36889domain: NAppears in sequencesa(n) = T(2*n+1, n+2), T given by A027011.at n=7A027017T(n,n+4), T given by A027960.at n=13A027964Records in A096335 (values).at n=41A221181Numbers k of the form (x + y)*(x^2 + y^2) such that (x + y) and (x^2 + y^2) are primes.at n=41A349202