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

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

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

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

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