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

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

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

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

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