A071048 Number of 0's in n-th row of triangle in A070887.

0, 0, 0, 1, 0, 3, 2, 2, 1, 5, 5, 4, 5, 6, 4, 5, 4, 9, 8, 9, 8, 8, 7, 10, 11, 13, 14, 11, 7, 10, 15, 15, 9, 15, 21, 17, 12, 20, 19, 15, 17, 23, 19, 13, 18, 20, 23, 26, 17, 19, 23, 28, 24, 20, 25, 25, 20, 24, 25, 24, 26, 28, 28, 28, 22, 26, 31, 30, 32, 31, 31, 28, 29, 32