The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  a 3a^2+2 2a^2+3a+1 a^2+3a a^2+3a+3 3a^2+2a+3  a 3a^2+2  0 2a^2+3 a^2+3a+3 a^2+3a 3a^2+2a+3 2a^2+3a+1  1 2a^2+3 a^2+3a+3  a 2a^2+3a+1 3a^2+2 a+2 a^2+3a+1 a^2+3a 2a^2+3a+3 a^2+a 2a^2+3  0 2a^2+3a+3 a^2+3a+1 a^2+a+3 2a^2+3a+3 3a^2+2a+2 3a^2+2a+3  2
 0  0 2a^2+2  0  2  2 2a+2  2 2a^2 2a+2 2a^2+2 2a^2 2a^2  0  0 2a^2 2a^2+2  2  2 2a 2a^2+2 2a+2 2a+2 2a^2+2a  0 2a^2+2a+2 2a^2+2a 2a 2a^2+2a 2a^2 2a^2+2a 2a+2 2a^2+2 2a+2 2a^2 2a^2+2 2a^2+2
 0  0  0  2 2a^2+2 2a^2+2a+2 2a+2 2a^2 2a^2+2a+2 2a^2+2 2a^2+2 2a^2+2a 2a 2a^2 2a^2+2a+2  0 2a^2+2a 2a^2+2a+2 2a 2a+2 2a+2  0  2 2a^2+2a 2a 2a^2+2a+2  2 2a^2 2a+2 2a^2+2 2a  0 2a  2 2a^2+2a 2a^2+2a+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+147x^232+56x^233+56x^238+1064x^239+679x^240+1960x^241+448x^245+1176x^246+10248x^247+735x^248+7224x^249+6272x^253+8232x^254+47992x^255+672x^256+22456x^257+21952x^261+19208x^262+84056x^263+616x^264+25648x^265+581x^272+399x^280+203x^288+63x^296

The gray image is a code over GF(8) with n=296, k=6 and d=232.
This code was found by Heurico 1.16 in 8.04 seconds.