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

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

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

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

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