The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  1  7  1  1  1  7  1  1  1  1  1  1  1  1  1 35 14  1  1 35  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31  1 16 19 48  4 36  7 38 26  9  6 46  1  9  6 46  1  7 29 38 30 34 15 21 18 13  1  1  2 18  1 34 39 30 42 42 21 16 21  2 20  6  7 30 20 45 26 40 29
 0  0 35 21 42  7 14 21  7 28 14  7 35  0  0 28 42 14 42 28  7 35  7 35 21 21 35 21 35  7  0 28 14  0 21 42 28 14 28 14  0 42 42 21  0 21 42 28 28 14 42 28  7  0  7 21  7 14  7 42

generates a code of length 60 over Z49 who´s minimum homogenous weight is 349.

Homogenous weight enumerator: w(x)=1x^0+882x^349+78x^350+840x^351+588x^352+1764x^353+2646x^356+126x^357+1260x^358+588x^359+588x^360+882x^363+72x^364+2016x^365+882x^366+1764x^367+1764x^370+18x^371+24x^378+24x^385

The gray image is a code over GF(7) with n=420, k=5 and d=349.
This code was found by Heurico 1.16 in 0.127 seconds.