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The check matrix of a [18,13,5]7.

The generator matrix of a [18,5,12]7.

100021001350433162
010010023501331412
001000215013314362
000102100135143312
000011111111111101

The weight distribution:

A'0= 1, A'12= 576, A'13= 1392, A'14= 2760, A'15= 2688, A'16= 5142, A'17= 3396, A'18= 852.

A0= 1, A5= 4848, A6= 52392, A7= 520704, A8= 4393092, A9= 29125800, A10= 157486032, A11= 686795904, A12= 2404642320, A13= 6657811632, A14= 14267829720, A15= 22827879168, A16= 25681609026, A17= 18128140908, A18= 6042718860.


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