The generator matrix

 1  0  1  1  1  1  1  1  1  1  0  1  0  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  X  1  1  1  1  1  1  1  1 4X  1  1  1  1
 0  1  1  2  4  3 3X+1  0  2 3X+4  1  3  1  3  2 3X+4  0 X+3 3X+1  1  0  2  3  X 3X+1 3X+4 3X+1 3X+4  1 4X+1 3X+1 X+1 X+4 X+2 2X  0 X+1  1 2X+2 X+1  X  0
 0  0 3X  0  0  0  0  X  X 3X 3X  X 2X 2X  X  X  0 3X 4X 2X  X 2X  0 3X  X 2X  X 2X 2X  0 4X 3X 4X 3X 2X  X  X 4X 2X 3X 4X  0
 0  0  0  X  0  X 3X 3X 2X  X 3X 3X 3X  X  0 4X  X  0  X 4X 3X 3X 3X 3X 2X 2X 4X 2X 2X  0  X 4X  0 3X  X 4X 3X  0  0 2X 4X  0
 0  0  0  0 3X 3X 2X 3X 4X  0 4X  X 3X 2X 3X  X 2X  X  X 4X 4X  X 3X 4X  X 3X 2X  0 4X  0  0 4X 4X 3X 4X 3X 2X 2X  0  0  X  0

generates a code of length 42 over Z5[X]/(X^2) who´s minimum homogenous weight is 145.

Homogenous weight enumerator: w(x)=1x^0+72x^145+80x^147+296x^150+360x^152+600x^153+800x^154+428x^155+1000x^157+1780x^158+2800x^159+388x^160+1900x^162+4780x^163+9300x^164+432x^165+3500x^167+8980x^168+14800x^169+352x^170+3520x^172+7580x^173+9800x^174+368x^175+2140x^177+1280x^178+288x^180+252x^185+148x^190+76x^195+20x^200+4x^205

The gray image is a linear code over GF(5) with n=210, k=7 and d=145.
This code was found by Heurico 1.16 in 6.97 seconds.