(0 19 15 13 7 5 3)(1 4 2)(6 12 8)(9 17 14)(10 20 11)(16 21 18)
ALLOWS (11/8)-SEQUENCE
1: (0 12 15)

(0 13 7 5 3)(1 4 2)(6 12 19 15 8)(9 17 14)(10 20 11)(16 21 18)
2: (9 17 14)

(0 13 7 5 3)(1 4 2)(6 12 19 15 8)(9)(10 20 11)(14)(16 21 18)(17)
3: (8 19 15)

(0 13 7 5 3)(1 4 2)(6 12 19)(8)(9)(10 20 11)(14)(15)(16 21 18)(17)
4: (16 21 18)

(0 13 7 5 3)(1 4 2)(6 12 19)(8)(9)(10 20 11)(14)(15)(16)(17)(18)(21)