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

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

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

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

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