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

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

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

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

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