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

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

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

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

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