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