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