73538domain: NAppears in sequencesConjectured largest number having n representations as the sum of two twin primes p + q with p >= q.at n=6A212613Inverse permutation to A253561: a(n) = A252752(A122111(n)).at n=45A253562Numbers n such that 9^n + 8^(n+1) is prime.at n=15A274239