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