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

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

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

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

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