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