The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  0  1  1  1  1  1  1  1  7  1  1  1  1  1  1  1  1 21  1  1  1  1  1  1  1  1  1  1  1 42  1  1  1  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31 16 48  4 19  1 19 16 36 48  4  1  0 31 38 36  7 26  6  1 14  9  6 23 40 15 46 15  1 24 21  2  5  7 29 45 24 33  6 20  1 15 48  7 45 24 14  0
 0  0 35  0 35  7 35  7 42 14  7 42  0  0 42 14 21 28 21 14 42 14 21  7 35 21 21 42 21 35 35  7  0 14 14 14 35 42 35 35  0 42 28 14  0 21 21  0 21 28 14 35  0 42 35 14 14  0
 0  0  0  7 28 28 21 42  0 42  7 42 35 28 21 21 42 21 35 35 14  0 42  0 35 21  7 35 28  7  7 21 42 28 14  7  7 35 42 14 14 14 14 35  0 28  0 28 35 42 14 35  7  7 28 14  0  0

generates a code of length 58 over Z49 who´s minimum homogenous weight is 322.

Homogenous weight enumerator: w(x)=1x^0+84x^322+168x^323+42x^327+336x^328+678x^329+756x^330+168x^331+1554x^333+1218x^334+2982x^335+2550x^336+2016x^337+1260x^338+4158x^340+2268x^341+5502x^342+2862x^343+2730x^344+5208x^345+11718x^347+6048x^348+11634x^349+6420x^350+5208x^351+7770x^352+11382x^354+4830x^355+8358x^356+3672x^357+3528x^358+210x^364+96x^371+102x^378+48x^385+48x^392+24x^399+12x^406

The gray image is a code over GF(7) with n=406, k=6 and d=322.
This code was found by Heurico 1.16 in 5.2 seconds.