The generator matrix

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

generates a code of length 26 over GR(64,4) who´s minimum homogenous weight is 169.

Homogenous weight enumerator: w(x)=1x^0+336x^169+2352x^170+322x^176+2016x^177+7840x^178+112x^184+4816x^185+14896x^186+7x^192+70x^208

The gray image is a code over GF(8) with n=208, k=5 and d=169.
This code was found by Heurico 1.16 in 0.528 seconds.