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

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

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

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

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