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

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

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

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

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