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

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

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

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

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