assert_allclose(ind,
                    [1, 3, 4, 6, 7, 9, 11, 13, 14, 16, 18, 19, 21,
                     23, 25, 26, 28, 29, 31, 33, 35, 36, 38, 39, 41, 43,
                     45, 46, 48, 50, 51, 53, 55, 56, 58, 60, 61, 63, 65,
                     67, 68, 70, 71, 73, 75, 77, 78, 80, 81, 83, 85, 87,