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

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

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

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

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