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

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

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

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

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