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

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

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

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

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