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

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

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

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

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