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