The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  2  1  1  1  1  1  2  1  1  1  1  1 2a  1 2a^2+2a+2  1  1  1  1  1  1  1  1 2a^2+2a+2  1  1  1  1 2a
 0  1  1  a 3a^2+2 2a^2+3a+1 a^2+3a a^2+3a+3 3a^2+2a+3  0 2a^2+3  a  2 a+2  2 a+2 2a^2+3 2a+3 2a^2+2a+3 3a 2a 2a^2+3a 2a 2a+3 2a+2 2a^2+2a+3 3a 2a+2 2a^2+3a  1 3a^2+2 2a^2+3a+1 a^2+3a 3a^2+2a+3  1 a^2+3a+3 3a^2+2a+2 2a^2+3a+3 a^2+a a^2+3a+1 3a^2+3  1 3a^2+2a+2 a^2+a a^2+3a+1 2a^2+3a+3 3a^2+3  1 3a^2+2a 3a+1 a^2+a+2 3a^2+3a+3 a^2+3  1 a^2+2  1 3a^2+1 2a^2+a+3 3a^2+3a+3 a^2+a+2 3a^2+2a 2a^2+a+3 a^2+a+1 a^2+3  1 a^2+2 3a+1 a^2+a+1 3a^2+1  1
 0  0 2a^2+2 2a  2  0 2a+2 2a^2+2a+2 2a^2+2a 2a^2 2a 2a^2+2a 2a^2+2 2a^2  2 2a^2+2a+2 2a+2 2a^2+2a  2  0 2a+2 2a^2+2 2a^2+2a+2  0 2a^2+2a 2a^2  2 2a 2a+2 2a^2+2a+2 2a 2a^2+2 2a^2+2a+2 2a^2 2a  0 2a^2 2a^2+2a  2 2a^2+2a 2a^2+2 2a^2+2a 2a+2  0 2a^2 2a 2a+2 2a+2  0 2a^2+2a+2 2a^2+2 2a  2 2a^2 2a^2+2a  2 2a^2+2a+2 2a+2  2  2 2a^2+2 2a^2 2a^2+2  0 2a^2+2a+2 2a^2+2a+2  2 2a+2 2a 2a^2+2

generates a code of length 70 over GR(64,4) who´s minimum homogenous weight is 480.

Homogenous weight enumerator: w(x)=1x^0+840x^480+12544x^482+1344x^488+3584x^490+1904x^496+12544x^498+7x^512

The gray image is a code over GF(8) with n=560, k=5 and d=480.
This code was found by Heurico 1.16 in 9.18 seconds.