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

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

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

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

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