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