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