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