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