14001361domain: NAppears in sequencesNumerator of Sum_{k=1..4} k^(-4).at n=4A007410Array T(n,k) read by ascending antidiagonals, where T(n,k) is the numerator of polygamma(n, 1) - polygamma(n, k).at n=41A255008Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = numerator of Sum_{j=1..n} 1/j^k.at n=40A322265