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

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

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

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

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