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  7  1  7  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  7  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31 16 48  4 19  1 19 16 36 48 26  1  4  0 31  1  7  1 38 36 26 21  9 46  6 29 21 38  9 38  6  8  6  1 11  6 48  0
 0  0 35  0 35  7 35  7 42 14  7 42  0  0 42 14 21 28 21 14 28  7  7 14 14 28 21  7 14 42 35 14 14  0 42  0 42  7 14 28 42 21 28  7 35 21 21  7
 0  0  0  7 28 28 21 42  0 42  7 42 35 28 21 21 42 21 35 35 35 21  0 35 28 28 42 35 21 35 14 42 14 14 28  0 21 28 21 14  0 21  0  0 28 14 28 35

generates a code of length 48 over Z49 who´s minimum homogenous weight is 266.

Homogenous weight enumerator: w(x)=1x^0+192x^266+126x^267+210x^268+1218x^272+2778x^273+924x^274+1344x^275+5166x^279+6738x^280+2646x^281+2940x^282+16884x^286+17946x^287+5838x^288+5712x^289+19950x^293+17346x^294+4872x^295+4200x^296+246x^301+102x^308+126x^315+90x^322+48x^329+6x^336

The gray image is a code over GF(7) with n=336, k=6 and d=266.
This code was found by Heurico 1.16 in 4.2 seconds.