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

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

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

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

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