(0 20 4)(1 16 9 7 5)(2 10 3)(6 12 8)(11 21 19 15 13)(14 18 17)
ALLOWS (11/8)-SEQUENCE
1: (0 1 4)
(0)(1 20 4 16 9 7 5)(2 10 3)(6 12 8)(11 21 19 15 13)(14 18 17)
2: (4 16 20)
(0)(1 20 9 7 5)(2 10 3)(4)(6 12 8)(11 21 19 15 13)(14 18 17)(16)
3: (15 21 19)
(0)(1 20 9 7 5)(2 10 3)(4)(6 12 8)(11 21 13)(14 18 17)(15)(16)(19)
4: (1 20 9)
(0)(1 7 5)(2 10 3)(4)(6 12 8)(9)(11 21 13)(14 18 17)(15)(16)(19)(20)