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

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

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

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

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