291期：01+03+05+08+09+13+14+15+17+18+22+29+31+32+33+34+35+36+40+41+43+45+46+49【半数特围】开43准
292期：01+02+05+07+09+10+14+17+19+20+23+26+27+30+31+35+37+39+40+41+42+43+44+48【半数特围】开09准
293期：04+06+09+13+14+15+17+18+19+20+26+28+29+32+34+37+39+40+41+44+45+46+47+48【半数特围】开09准
294期：01+02+06+09+10+15+18+19+22+23+24+25+27+28+30+31+32+33+34+39+41+42+46+49【半数特围】开47错
295期：02+05+08+13+14+16+17+20+22+26+27+29+31+33+38+39+40+41+42+44+46+47+48+49【半数特围】开28错
296期：07+08+09+10+13+15+16+18+20+22+25+26+29+30+31+34+36+39+40+41+44+46+47+49【半数特围】开26准
297期：03+05+06+07+08+11+12+14+15+17+19+20+23+26+29+30+31+38+39+40+44+46+47+48【半数特围】开12准
298期：01+03+04+05+06+09+14+15+16+20+22+23+26+27+28+29+30+31+32+38+39+41+46+48【半数特围】开31准
299期：02+08+11+13+15+18+19+21+22+23+27+28+30+33+34+35+36+37+38+39+42+45+47+49【半数特围】开？？