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