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

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

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

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

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