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

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

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

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

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