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

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

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

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

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