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