The generator matrix

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

generates a code of length 56 over Z8 who´s minimum homogenous weight is 49.

Homogenous weight enumerator: w(x)=1x^0+108x^49+363x^50+516x^51+605x^52+706x^53+712x^54+818x^55+806x^56+750x^57+742x^58+584x^59+456x^60+376x^61+296x^62+154x^63+81x^64+66x^65+31x^66+8x^67+3x^68+10x^69

The gray image is a code over GF(2) with n=224, k=13 and d=98.
This code was found by Heurico 1.11 in 1.05 seconds.