135510domain: NAppears in sequencesG.f. satisfies A(x) = (1 + x / (1 - x*A(x)))^2.at n=11A365118Number of addition sums of the form x + y = z with 0 < x < y in base n, where each digit of the base appears at most once among all of x, y and z.at n=12A387334