9740641domain: NAppears in sequencesUnsigned member r=-13 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=7A099271Prime powers (A025475) such that the distance to the nearest square is a square.at n=25A239582Prime powers (A025475) such that the distance to the nearest square is a prime power.at n=17A239583