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

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

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

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

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