(0 4 2)(1 20 18)(3 17 15)(5 10 8)(6 13 7)(9 19 12)(11 16 14)
ALLOWS (11/8)-SEQUENCE
1: (1 11 16)

(0 4 2)(1 14 11 20 18)(3 17 15)(5 10 8)(6 13 7)(9 19 12)(16)
2: (3 17 15)

(0 4 2)(1 14 11 20 18)(3)(5 10 8)(6 13 7)(9 19 12)(15)(16)(17)
3: (0 4 2)

(0)(1 14 11 20 18)(2)(3)(4)(5 10 8)(6 13 7)(9 19 12)(15)(16)(17)
4: (1 14 18)

(0)(1)(2)(3)(4)(5 10 8)(6 13 7)(9 19 12)(11 20 18)(14)(15)(16)(17)