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