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

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

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

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

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