The generator matrix

 1  0  0  1  1  1  1  1  1  1  1  1  7  1  1  1  1  1  1  1  1  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  1  1  1  1  1  1  1 35 21 21  0  1  1  1  1 14  1  1  1  1  1  1  1  1 42  1  1  1 35  1  1  1 21  1  1  1  1  1  1 21  1  1  1  1
 0  1  0 35 21 42  1 17 30 36 29 43  1 34  4 31 19 45 38 20 16 46  2 13  9 40 47 39  2 40 32 17 26 10 23 27 39  1 13 48 47 14 15 22 11 21  9 22  4 41 45 26 42  1  1  1  1 11 24 12 41  1 16  7  6  2  3  0 32 24  1 30 33 15  1 10  1 18 35 12 42 48 47 27 37  1 14 46 36  3
 0  0  1 36 31 16 30 23  9  5 20 17 17 32  3  6 35 12 45 24 10 25 29 26 27  1 18 21  7 47  8 11 41 14 11 48  9 20 16 22 30  6 39 43 40  4 47 35 41  0 22 31 12  5 36  4 44 27  2  7  2 10 21 48  0 43 19 19 47 36 34  4 38 14 23 13 18 28  1 18  8 39 13 29 40 21  3  9 38  4

generates a code of length 90 over Z49 who´s minimum homogenous weight is 524.

Homogenous weight enumerator: w(x)=1x^0+1260x^524+6720x^525+2646x^526+546x^527+420x^529+6342x^531+15804x^532+4494x^533+1890x^534+546x^536+6426x^538+16614x^539+4830x^540+1638x^541+588x^543+5418x^545+15402x^546+3318x^547+2100x^548+504x^550+5250x^552+11634x^553+3234x^554+6x^560+18x^574

The gray image is a code over GF(7) with n=630, k=6 and d=524.
This code was found by Heurico 1.16 in 6.52 seconds.