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

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

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

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

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