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

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

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

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

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