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