Indeed unproductive.
13, 29, 69, 81, 116, 120, 129, 144, 157, 160. 167, 177, 185, 191, 234-05, 207, 219, 229, 310, 312, 324, 328, 335-36, 346, 350.
13, 29, 69, 81, 116, 120, 129, 144, 157, 160. 167, 177, 185, 191, 234-05, 207, 219, 229, 310, 312, 324, 328, 335-36, 346, 350.