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

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

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

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

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