length n = 69
dimension k = 3
alphabet length q = 8

minimum distance d = 60

generator matrix:
001011011011011011011111111111111111111111111111111111111111111111111
010101102103104106107125136147125136147246227233246357357344455566677
100110250360470630740215316417521631741357455656735246462767227323434

projective group of automorphisms generated by:
010
001
100

010
001
100