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

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

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

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

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