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