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