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,
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