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