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