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