1695036domain: NAppears in sequencesa(n) = sum of the sums of the k first n-th powers.at n=7A215084a(n) = (5*n^9 - 30*n^7 + 63*n^5 - 50*n^3 + 12*n)/360.at n=8A239094Second partial sums of seventh powers (A001015).at n=6A250212a(n) = 1*7^n + 2*6^n + 3*5^n + 4*4^n + 5*3^n + 6*2^n + 7*1^n.at n=7A254145