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

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

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

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

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