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

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

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

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

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