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