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