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

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

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

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

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