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