(0 21 2)(1 5 3)(4 12 6)(7 10 8 17 9)(11 15 14)(13 19 16)(18 22 20)
ALLOWS (11/8)-SEQUENCE
1: (1 5 8)

(0 21 2)(1 17 9 7 10 8 3)(4 12 6)(5)(11 15 14)(13 19 16)(18 22 20)
2: (4 12 6)

(0 21 2)(1 17 9 7 10 8 3)(4)(5)(6)(11 15 14)(12)(13 19 16)(18 22 20)
3: (1 17 9)

(0 21 2)(1 7 10 8 3)(4)(5)(6)(9)(11 15 14)(12)(13 19 16)(17)(18 22 20)
4: (3 10 8)

(0 21 2)(1 7 10)(3)(4)(5)(6)(8)(9)(11 15 14)(12)(13 19 16)(17)(18 22 20)