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