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