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

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

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

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

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