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

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

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

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

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