The generator matrix

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

generates a code of length 37 over GR(64,4) who´s minimum homogenous weight is 232.

Homogenous weight enumerator: w(x)=1x^0+140x^232+224x^239+637x^240+2016x^247+861x^248+9632x^255+609x^256+16800x^263+623x^264+469x^272+511x^280+196x^288+49x^296

The gray image is a code over GF(8) with n=296, k=5 and d=232.
This code was found by Heurico 1.16 in 0.353 seconds.