(0 18 2)(1 7 3)(4 10 8)(5 21 6)(9 19 16 14 11)(12 20 17 15 13)
ALLOWS (11/8)-SEQUENCE
1: (1 7 19)

(0 18 2)(1 16 14 11 9 19 3)(4 10 8)(5 21 6)(7)(12 20 17 15 13)
2: (0 18 2)

(0)(1 16 14 11 9 19 3)(2)(4 10 8)(5 21 6)(7)(12 20 17 15 13)(18)
3: (1 16 3)

(0)(1)(2)(3 14 11 9 19)(4 10 8)(5 21 6)(7)(12 20 17 15 13)(16)(18)
4: (15 20 17)

(0)(1)(2)(3 14 11 9 19)(4 10 8)(5 21 6)(7)(12 20 13)(15)(16)(17)(18)