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