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

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

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

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

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