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