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

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

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

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

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