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