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

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

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

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

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