The generator matrix

 1  0  0  0  1  1  1  1  4  1  6  4  6  1  1  1  1  1  1  0  2  0  6  1  1  2  6  0  1  1  1  1  1  1  2  1  0  1  1  1  2  4  1  1  6  6  1  0  1  1  1
 0  1  0  0  0  4  5  1  1  2  6  1  1  3  1  6  5  5  4  1  4  4  1  7  3  1  1  6  0  6  6  3  5  4  1  3  1  2  1  2  2  6  1  4  0  0  2  1  4  0  0
 0  0  1  0  4  1  4  5  1  1  1  6  7  4  3  0  1  6  4  7  1  2  1  2  5  2  4  1  1  7  5  7  2  7  1  3  3  2  7  6  1  2  0  7  4  1  3  7  6  2  0
 0  0  0  1  7  7  3  4  3  0  1  5  6  2  1  3  5  3  6  5  4  1  4  2  0  5  0  1  1  0  7  6  0  3  6  7  6  3  2  5  3  1  1  5  1  2  5  4  5  0  0

generates a code of length 51 over Z8 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+76x^45+282x^46+408x^47+392x^48+436x^49+398x^50+372x^51+408x^52+308x^53+250x^54+280x^55+206x^56+92x^57+90x^58+52x^59+14x^60+16x^61+4x^62+8x^63+1x^64+2x^68

The gray image is a code over GF(2) with n=204, k=12 and d=90.
This code was found by Heurico 1.16 in 0.407 seconds.