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