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