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

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

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

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

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