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