The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  7  1  1  1  1  7  1  1  1  1  1 14  1  1  1  1  1
 0  1  1 31 16 48  4 19  0  7  7 14 14 19 31 48  1 36  4 16 38 36  9  6  1 46 26 29 38  1  9  6 46 26 29  1 45 23 20 32 33
 0  0 35 21 42  7 14 21  7 28 14 35 42  0 14 21 14  7 21  0 28 28 35 14  7  0 42 21 42 35  7 28 42 35 14 42  0 21 35 28 28

generates a code of length 41 over Z49 who´s minimum homogenous weight is 237.

Homogenous weight enumerator: w(x)=1x^0+2940x^237+690x^238+4410x^244+696x^245+7056x^251+1002x^252+6x^280+6x^287

The gray image is a code over GF(7) with n=287, k=5 and d=237.
This code was found by Heurico 1.16 in 0.0706 seconds.