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

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

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

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

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