279期：<<10,13,14,19,22,24,27,28,33,34,35,37,42,43,46,49>>开：10有
280期：<<03,04,05,06,08,10,15,21,26,28,31,36,40,41,42,48>>开：15有
281期：<<05,09,10,12,18,19,20,23,29,31,32,34,38,40,41,45>>开：10有
282期：<<03,04,05,11,13,14,17,24,25,26,28,32,39,41,42,49>>开：23无
283期：<<01,04,08,09,11,14,17,18,22,29,35,38,42,45,46,49>>开：18有
284期：<<01,05,09,15,21,22,23,26,30,34,35,41,45,47,48,49>>开：32无
285期：<<01,02,04,08,14,15,18,30,33,34,35,37,41,42,44,49>>开：88