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

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

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

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

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