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