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

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

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

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

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