The check matrix of a [15,9,6]7.
100001210044020
010002100140204
001001001202044
000100012120440
000010121004402
000001111111111
The weight distribution:
A'0= 1,
A'7= 90,
A'9= 1260,
A'10= 5418,
A'11= 13230,
A'12= 18270,
A'13= 42210,
A'14= 24570,
A'15= 12600.
A0= 1,
A6= 3780,
A7= 9630,
A8= 100170,
A9= 423360,
A10= 1547910,
A11= 4193910,
A12= 8445150,
A13= 11634210,
A14= 10000530,
A15= 3994956.
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