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

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

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

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

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