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

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

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

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

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