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