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

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

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

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

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