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