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

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

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

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

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