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