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

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

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

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

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