The check matrix of a [27,18,7]5.

242014434023313041121032000
420144340233130411210322000
221442334113221442334113010
404303101202404303101202110
204030102040301020403010000
413214234132142341321423000
214341214341214341214341000
440110440110440110440110000
243124312431243124312431001

The weight distribution:

A'0= 1, A'12= 200, A'14= 2000, A'15= 2000, A'16= 16700, A'17= 44000, A'18= 88300, A'19= 139600, A'20= 256120, A'21= 350000, A'22= 391600, A'23= 312200, A'24= 197900, A'25= 115004, A'26= 35300, A'27= 2200,

A0= 1, A7= 13320, A8= 61700, A9= 614700, A10= 4606540, A11= 27969000, A12= 149222520, A13= 688976400, A14= 2757904400, A15= 9555697120, A16= 28669470500, A17= 74211487020, A18= 164896154600, A19= 312451289600, A20= 499916306760, A21= 666560382000, A22= 727135035120, A23= 632326619800, A24= 421521191300, A25= 202344655204, A26= 62256053500, A27= 9223554520,


| Some codes | home |