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

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

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

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

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