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