Although this site was up over 25 years it now soon will be shut down due to administrative reasons.
It will be further available on my new home page www.yvesedel.de

The check matrix of a [20,15,5]₉.

10000148572738543384
01000132851326410134
00100123461235807637
00010111110000011568
00001000001111111111

The prime polynomial used to generate GF(9) is: X²+X-1. The element f=aX+b, a,b in {0,1,2}, is written as the number a*3+b.

The weight distribution:

A'₀= 1, A'₁₁= 16, A'₁₃= 32, A'₁₄= 800, A'₁₅= 3296, A'₁₆= 7144, A'₁₇= 11200, A'₁₈= 15648, A'₁₉= 16080, A'₂₀= 4832.

A₀= 1, A₅= 10784, A₆= 169632, A₇= 2743680, A₈= 35800064, A₉= 381848560, A₁₀= 3359455440, A₁₁= 24433114736, A₁₂= 146600991360, A₁₃= 721723617792, A₁₄= 2886892924480, A₁₅= 9238070284128, A₁₆= 23095157086392, A₁₇= 43473251109520, A₁₈= 57964328419024, A₁₉= 48812067637680, A₂₀= 19524826881376.

| Some codes | home |