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