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

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

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

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

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