384573domain: NAppears in sequencesa(n) = Sum_{i=0..n} A047130(i, n-i).at n=20A047131Values x for records of the minima of the positive distance d between the ninth power of a positive integer x and the square of an integer y such that d = x^9 - y^2 (x <> k^2 and y <> k^9).at n=42A179791