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  1  1  1  1  1  0  0  1  0  2  1  1  4  1  4  1  1  1  1  1  4  1  2  4  2  0  1  1  1  2  2  4  2  1  0  1  1  1  4  2  2  2  1
 0  2  0  0  0  2  6  2  0  0  4  2  4  2  6  2  2  4  0  2  6  2  4  0  6  2  4  2  6  4  0  6  0  4  0  0  4  2  2  2  4  0  6  4  0  2  0  2  0  6  2  6  4  6  2  6  4  2  4  2  2  2  4  4  4  2  6  6  2  0
 0  0  2  0  2  2  6  0  0  4  2  2  2  6  4  0  0  0  0  2  2  4  6  6  0  4  4  2  2  6  2  4  4  2  0  0  0  4  6  4  2  2  6  4  4  4  2  6  2  0  2  2  2  4  6  2  6  4  2  6  6  2  0  4  4  6  2  4  2  2
 0  0  0  2  2  0  6  2  4  2  2  0  4  6  0  2  6  2  0  6  4  0  0  6  4  2  6  0  2  2  4  0  2  4  0  2  2  2  0  6  4  6  0  4  0  0  6  0  4  0  2  6  2  6  6  2  6  6  6  4  2  2  4  0  6  4  0  0  6  2
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  4  0  0  0  4  0  4  0  4  4  4  0  0  0  0  4  4  4  0  0  4  4  0  4  4  0  0  4  4  4  0  4  0  0  4  0  4  4  0  4  4  4  0  0  4  0  4  4  0  4  4  0  0  4  0
 0  0  0  0  0  4  0  4  4  0  4  4  0  4  4  4  0  4  0  0  4  0  0  0  4  0  4  0  4  4  0  4  4  0  4  0  0  4  0  4  4  4  4  4  0  4  4  0  4  0  4  4  4  0  0  4  0  0  0  0  4  4  4  0  4  4  0  4  0  4
 0  0  0  0  0  0  4  4  0  4  4  4  0  4  4  0  4  4  4  4  4  4  4  4  0  4  0  4  4  0  4  4  4  0  4  4  0  0  0  0  0  4  0  0  4  0  4  0  4  4  4  4  0  0  0  4  4  0  0  0  0  0  4  4  4  4  4  0  4  4

generates a code of length 70 over Z8 who´s minimum homogenous weight is 61.

Homogenous weight enumerator: w(x)=1x^0+48x^61+74x^62+146x^63+184x^64+244x^65+275x^66+292x^67+350x^68+356x^69+374x^70+334x^71+329x^72+228x^73+216x^74+168x^75+104x^76+116x^77+68x^78+62x^79+37x^80+24x^81+13x^82+20x^83+17x^84+8x^85+4x^86+2x^87+1x^88+1x^100

The gray image is a code over GF(2) with n=280, k=12 and d=122.
This code was found by Heurico 1.16 in 1.23 seconds.