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