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