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

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

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

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

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