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