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

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

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

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

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