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