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  1  1  1  1  1  1  1  1  1  7  1  1  1  1  1  1  1  1  7  1  1  1  1  1 14  1  1  1  1  1  1  1  1  7  1  1  1  7  1  1  1  0  1  1  1  1 42  1  1  1  1  1  1  1  1  1 14  1 14  1
 0  1  1 31 16 48  4 19  0 36 31 16 48  4 19  1 19 16 48 36  4  1  0 31 36 26 38  7  6 46 29 11 38 26  6  9  6  7  1  9 47 41  9 21  6 32 38  1 14 23 48 18  3  1 19  0 22 16 38 32  5 29  1  7 15 17  1 20 11 26  1  9 23 43 33  1 17 29 46 30 15 12  5 25 34  1 20  1  7
 0  0 35  0 35  7 35  7 42 14  7 42  0  0 42 14 21 28 14 21 42 14 21  0 14 42 35 28 21 14  7 35 28  0 28 14 28 28 28 28  7  7 14 21 21  0 42  0 21 42  0 28 42 28 35  7  7 42 35 28 35 21 35 35 21  7 35 42  7 21  7 28  0 14 14 35  7 35 42 35 21 28 35 14 28 28  7  0  7
 0  0  0  7 28 28 21 42  0 42  7 42 35 28 21 21 42 21 35 35 14  0 42 14  7 35 35 28 28 21 14  7  0  0 42 14  7 14 21  0 35 21  0 14 21 42 14 14  0 21 28 42 28  7  0 28  7  7 28  7 42 42 42  7 14 21  7  7 14  7 42 14 42 28  7 35  0 28 28 35 21 28 21 35 35 14 21 35 28

generates a code of length 89 over Z49 who´s minimum homogenous weight is 511.

Homogenous weight enumerator: w(x)=1x^0+396x^511+1218x^516+3066x^517+4518x^518+4116x^523+6846x^524+7896x^525+6510x^530+9576x^531+10458x^532+10920x^537+15960x^538+14970x^539+6048x^544+7770x^545+6960x^546+144x^553+48x^560+60x^567+12x^574+42x^581+36x^588+42x^595+12x^602+24x^609

The gray image is a code over GF(7) with n=623, k=6 and d=511.
This code was found by Heurico 1.16 in 8.49 seconds.