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