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

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

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

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

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