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