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

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

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

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

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