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

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

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

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

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