1615824domain: NAppears in sequencesTriangle read by rows: T(n,k) (1 <= k <= n) is the sum of the entries in the lower right k X k submatrix of the n X n inverse Hilbert matrix.at n=16A144630Second diagonal (or column) of A144630.at n=4A144631G.f.: Sum_{n>=0} (1 + x)^(n^2) / 2^n.at n=5A265936