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