74434domain: NAppears in sequencesNumber of 6-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=22A187380Numbers k such that 5*R_k + 7*10^k + 2 is prime, where R_k = 11...11 is the repunit (A002275) of length k.at n=18A259132