269100domain: NAppears in sequencesNumber of ways to place 2 nonattacking amazons (superqueens) on an n X n board.at n=27A172200Expansion of (8+6*x)/(1-x)^5.at n=24A190048Numbers with prime factorization pqr^2s^2t^2.at n=29A190379G.f. A(x) satisfies A(x) = 1 + x^4*A(x)^4*(1 + x*A(x)).at n=27A365730