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