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

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

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

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

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