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