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