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