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

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

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

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

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