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

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

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

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

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