Generate an array from a function on indices

Array[Divide, {5, 5}]//MatrixForm

MatrixForm[{{1, 1/2, 1/3, 1/4, 1/5}, {2, 1, 2/3, 1/2, 2/5}, {3, 3/2, 1, 3/4, 3/5}, {4, 2, 4/3, 1, 4/5}, {5, 5/2, 5/3, 5/4, 1}}]

Array[Subscript["a", ##]&, {5, 5}]//MatrixForm

MatrixForm[{{Subscript[a, 1, 1], Subscript[a, 1, 2], Subscript[a, 1, 3], Subscript[a, 1, 4], Subscript[a, 1, 5]}, {Subscript[a, 2, 1], Subscript[a, 2, 2], Subscript[a, 2, 3], Subscript[a, 2, 4], Subscript[a, 2, 5]}, {Subscript[a, 3, 1], Subscript[a, 3, 2], Subscript[a, 3, 3], Subscript[a, 3, 4], Subscript[a, 3, 5]}, {Subscript[a, 4, 1], Subscript[a, 4, 2], Subscript[a, 4, 3], Subscript[a, 4, 4], Subscript[a, 4, 5]}, {Subscript[a, 5, 1], Subscript[a, 5, 2], Subscript[a, 5, 3], Subscript[a, 5, 4], Subscript[a, 5, 5]}}]