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