968551222domain: NAppears in sequencesa(0) = 1; a(n) = (5*3^(n-1) - 1)/2 for n > 0.at n=19A060816a(n) = (5*9^n - 1)/2.at n=9A255043Row sums of A321624.at n=19A321573Least number m for which there exists some positive k < m where the sum of the integers from k + 1 to m inclusive is an n-th power > 1.at n=36A372782