975000domain: NAppears in sequencesNumber of reversible strings with n beads of 5 colors. If more than 1 bead, not palindromic.at n=8A032088a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 25.at n=2A093225Numbers n such that 10^11 + n^2 is a square.at n=11A180974