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