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

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

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

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

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