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

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

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

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

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