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