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

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

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

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

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