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