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

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

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

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

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