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

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

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

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

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