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