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

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

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

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

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