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

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

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

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

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