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 21  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  7  1  1  1 14  1 35  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 38 36  7 26  6  1 14  9  6 23 40 46 38  1  2 13 43 46 22 47 17 25 21 31 16 28 41 18  1 21  1 46  9 23  1 46  1 34 38 22 38  0
 0  0 35  0 35  7 35  7 42 14  7 42  0  0 42 14 21 28 14 21 42 14 21  7 35 21 21 42 21 35 35  7  0 14 14 42 21 35 35 42 14 35 42 28 14  7 28  0 28 35  7  7  0  0 42 21 35  7 28  7  7 42 14 28 35  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 28 42 14 42 35  7  0 35 28  7  7 14  0  0  0 14 35 14 21 21  7 42  0 21 35  0 14 35  0  7

generates a code of length 66 over Z49 who´s minimum homogenous weight is 371.

Homogenous weight enumerator: w(x)=1x^0+84x^371+42x^375+168x^376+2100x^377+456x^378+798x^381+1218x^382+1596x^383+8148x^384+492x^385+2016x^388+2268x^389+2436x^390+15876x^391+390x^392+5922x^395+6048x^396+6132x^397+28014x^398+306x^399+5670x^402+4830x^403+4074x^404+17892x^405+132x^406+174x^413+126x^420+90x^427+60x^434+54x^441+24x^448+12x^455

The gray image is a code over GF(7) with n=462, k=6 and d=371.
This code was found by Heurico 1.16 in 6.04 seconds.