The generator matrix

 1  0  0  0  1  1  1 (a+1)X aX  1  1  1 aX  1  1  1  1  1  1  1 (a+1)X  1  1  0  1
 0  1  0  0  1  X (a+1)X+1  1  1  a X+a+1 (a+1)X  1 X+1  X X+a X+1 (a+1)X+1 aX+1 (a+1)X+a+1  1  1  0  1 aX
 0  0  1  0 a+1 (a+1)X+1  a  a (a+1)X+a+1  0 a+1 aX X+1 X+a+1 aX+1 aX+a+1 (a+1)X  X (a+1)X+1 X+a (a+1)X X+a aX+1 (a+1)X+a+1  X
 0  0  0  1  1 a+1  a X+1 aX+a  a aX+a aX+a+1 X+1 (a+1)X+a+1 X+1  0 aX a+1 (a+1)X+a+1 aX+a+1 X+a aX+a+1  X (a+1)X+a+1 (a+1)X
 0  0  0  0 (a+1)X  0 (a+1)X (a+1)X (a+1)X  X aX aX  0  0  X (a+1)X aX  X (a+1)X (a+1)X aX aX  X  X aX

generates a code of length 25 over F4[X,sigma]/(X^2) who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+339x^60+312x^61+432x^62+1104x^63+2418x^64+2112x^65+2748x^66+4536x^67+9102x^68+6888x^69+8064x^70+13632x^71+21450x^72+16224x^73+16056x^74+25296x^75+33756x^76+20136x^77+16560x^78+20016x^79+20484x^80+9312x^81+5292x^82+3000x^83+2466x^84+312x^85+54x^88+33x^92+9x^96

The gray image is a linear code over GF(4) with n=100, k=9 and d=60.
This code was found by Heurico 1.16 in 67.9 seconds.