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