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

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

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

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

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