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