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