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

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

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

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

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