795664domain: NAppears in sequencesNumber of 4Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=11A207369Perfect powers k such that A052409(k) is equal to A052409(A366275(k)).at n=32A366278