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

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

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

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

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