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

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

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

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

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