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