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 21  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  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 16 48  4 19  1 19 16 48 36  4  1  0 31 36 26 38  7  6 46  9 29  7 11 23  1  7  6  1 38 33 43  9  3  1 40 44 26 39 42 14  2 32  7 38 38 35 46 22 43 24 46 31 17 14  6 25 28 45 11  4 25 17 28 20 17 46 15 43  1  4 31 33 22  9  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 28  7 21 35 42 28 14 21 42 14 21 42 21 35 35 35 28 28  0 28 21 42 14 28 35  0 35 35 21  0 42 14  7 42 35  0 14 21 35  7 42 21 14 14 28 42 21 35 42  0  0 28  7 21 14  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  0 14  7  0 28 28 14  0 28 21 35 42  7 21  0 14 42 21 35  7  0  7 35 14 28 42 42  7 21  0  0  0 21 35 21 14 14 28 42 14 28  0  7 42 42 14 21 35  7  7 21  0  7 42 35  7

generates a code of length 86 over Z49 who´s minimum homogenous weight is 490.

Homogenous weight enumerator: w(x)=1x^0+114x^490+42x^493+42x^494+336x^495+1512x^496+870x^497+1344x^500+630x^501+3360x^502+5628x^503+2040x^504+2604x^507+2268x^508+4746x^509+8106x^510+3696x^511+3108x^514+5754x^515+9576x^516+13230x^517+5688x^518+5082x^521+5712x^522+9114x^523+11760x^524+3828x^525+2226x^528+1680x^530+2982x^531+186x^532+108x^539+84x^546+72x^553+42x^560+18x^567+30x^574+24x^581+6x^588

The gray image is a code over GF(7) with n=602, k=6 and d=490.
This code was found by Heurico 1.16 in 8.57 seconds.