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  7  1  1 14  1  1  1 28  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  1 21  1  1  1  1  1  1  1  1 42  1  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 48 36  4  1  0 31 36 26 38  7  6 46 29  9  7 38  9  1 43  6  1 27 21 40  1  9 40 43 23  8 38 28  3 16 38 43 44  9 24  3  8 31 32 37 38 15 43 11  6  1  8  1 19  3  8 26 35 45 45 48  1 40 14 26  6 36  8 48  0
 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 28 14 14 21 35 42 21 42  7 35 35  7 21 28 28  7 14 35 28 14 35 21  7  0  0  7 21 28  7  7 42 42 42  0  7 14 42 14 42  7  0 42 21 28  7 28 42 28 14 14 28 35 42 28 28  0
 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  0 14 21  7 42 42  0 28  0  7 42 35 21 14  0 28 14 14 21 35 21  7  7  7 42 21 14 35  0 28 14 35 21 35 35 42 21 28 35 21 42 14 21 14 42  7  7  7  0  0  0 42 28  7 28  0

generates a code of length 87 over Z49 who´s minimum homogenous weight is 497.

Homogenous weight enumerator: w(x)=1x^0+360x^497+672x^502+1260x^503+2442x^504+1050x^505+798x^507+2016x^509+4368x^510+6510x^511+2268x^512+2016x^514+2730x^516+5460x^517+9852x^518+3066x^519+5922x^521+3864x^523+9198x^524+15978x^525+5502x^526+5670x^528+3528x^530+7308x^531+9978x^532+2520x^533+1596x^537+1218x^538+114x^539+84x^546+108x^553+48x^560+60x^567+36x^574+18x^581+24x^588+6x^595

The gray image is a code over GF(7) with n=609, k=6 and d=497.
This code was found by Heurico 1.16 in 8.64 seconds.