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