The generator matrix

 1  0  0  1  1  1  1  1 35  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 21  1  1  1  1  1 28  1  1  1 42  1  0  1  1  1  1  1  1  1  1  1  1
 0  1  0 36 31 16 35 17  1 48  1  9 34 18 19 28 29 38  2 39 26 13 20 40  5  1 23 46 11 19 39  1 15 21 32  1 30  1 45 27 26 44 20 32  3 45 31 12
 0  0  1  5 31 34 36  4 16 38  2 21 46 37 40 30 48 12 17 15 35  1 13 29 25  3 32 18 13  9 47  4 14 41 24 29  1 40 15 19 38 27 45 19 31 41 39 12

generates a code of length 48 over Z49 who´s minimum homogenous weight is 274.

Homogenous weight enumerator: w(x)=1x^0+2016x^274+5334x^275+42x^276+378x^277+252x^278+3360x^279+1950x^280+8904x^281+12096x^282+504x^283+1890x^284+672x^285+5040x^286+1782x^287+11130x^288+16254x^289+1512x^290+3906x^291+1134x^292+8064x^293+2706x^294+12936x^295+15708x^296+48x^301+6x^308+18x^315+6x^322

The gray image is a code over GF(7) with n=336, k=6 and d=274.
This code was found by Heurico 1.16 in 20.7 seconds.