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