The generator matrix

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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 62.

Homogenous weight enumerator: w(x)=1x^0+172x^62+76x^63+403x^64+164x^65+496x^66+188x^67+526x^68+180x^69+557x^70+196x^71+407x^72+140x^73+276x^74+52x^75+99x^76+28x^77+86x^78+16x^80+12x^82+14x^84+1x^86+5x^88+1x^92

The gray image is a code over GF(2) with n=276, k=12 and d=124.
This code was found by Heurico 1.16 in 66.6 seconds.