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