The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  1  1  1 3X  1  1
 0  1 5X+1  3 5X+2  6 5X+4  5  X 4X+1 X+3 4X+2 X+6 4X+4 X+5  1 3X 6X+1 3X+3 6X+2 3X+6 6X+4 3X+5  1 2X 2X+1

generates a code of length 26 over Z7[X]/(X^2) who´s minimum homogenous weight is 152.

Homogenous weight enumerator: w(x)=1x^0+756x^152+336x^153+12x^154+1008x^159+252x^160+36x^161

The gray image is a linear code over GF(7) with n=182, k=4 and d=152.
This code was found by Heurico 1.16 in 0.00232 seconds.