A071559 Smallest k such that n^2+k^2 and n+k are simultaneously primes.

1, 1, 2, 1, 2, 1, 10, 3, 4, 1, 6, 7, 10, 9, 2, 1, 2, 5, 10, 3, 10, 15, 8, 5, 4, 5, 2, 13, 30, 11, 6, 5, 8, 9, 2, 1, 30, 3, 34, 1, 20, 5, 10, 9, 2, 15, 20, 13, 4, 11, 16, 7, 20, 25, 4, 11, 2, 3, 14, 13, 10, 17, 38, 9, 2, 1, 22, 5, 10, 3, 26, 7, 28, 5, 4, 21, 12, 25, 4, 9, 20, 15, 18, 19, 12