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