length n = 69
dimension k = 4
alphabet length q = 2

minimum distance d = 36

generator matrix:
000000000000000101010101010101010101010101010101010111111111111111111
000000000000001010101010101010101010101010101010101011111111111111111
000001111111110000000000000000000011111111111111111100000000111111111
111110000011110000000000111111111100000000111111111100011111000001111

projective group of automorphisms generated by:
0100
1000
0010
0001