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