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