276期：【04,08,12,13,15,19,27,28,33,38,40,41】开（14）√√
277期：【01,03,09,12,22,25,30,31,32,33,42,45】开（11）√√
278期：【03,07,09,13,23,25,27,33,35,39,40,43】开（02）√√
279期：【02,04,12,17,18,22,26,32,42,43,45,49】开（10）√√
280期：【02,06,10,16,20,26,34,36,38,39,40,46】开（15）√√
281期：【02,03,08,10,12,13,22,32,34,37,42,47】开（10）××
282期：【04,13,14,15,20,26,28,32,34,40,41,44】开（？）