255期：16码≤≤06,08,20,21,22,23,25,26,28,31,33,36,37,41,42,46≥≥开：36对
256期：16码≤≤03,06,10,11,13,16,20,21,23,24,25,26,41,43,44,47≥≥开：19错
257期：16码≤≤02,05,13,19,27,29,31,32,34,36,38,39,41,42,43,47≥≥开：08错
258期：16码≤≤05,06,08,12,13,19,20,26,33,38,40,43,45,46,48,49≥≥开：26对
259期：16码≤≤01,02,07,13,15,16,17,30,35,41,42,43,44,45,46,49≥≥开：46对
260期：16码≤≤05,07,11,12,16,22,23,24,27,31,35,41,42,45,48,49≥≥开：//