588060domain: NAppears in sequencesNumbers k such that 2*prime(k)+1, 2*prime(k+1)+1, 2*prime(k+2)+3 and 2*prime(k+3)-3 are also consecutive primes.at n=2A103912Number of ways to place 2 nonattacking knights on an n X n toroidal board.at n=32A172529