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