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

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

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

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

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