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