(0 21 13)(1 19 16)(2 18 14 11 8 6 4)(3 20 5)(7 10 9)(12 17 15)
ALLOWS (11/8)-SEQUENCE
1: (0 3 13)

(0)(1 19 16)(2 18 14 11 8 6 4)(3 21 13 20 5)(7 10 9)(12 17 15)
2: (2 18 8)

(0)(1 19 16)(2 6 4)(3 21 13 20 5)(7 10 9)(8 14 11)(12 17 15)(18)
3: (1 19 16)

(0)(1)(2 6 4)(3 21 13 20 5)(7 10 9)(8 14 11)(12 17 15)(16)(18)(19)
4: (5 13 20)

(0)(1)(2 6 4)(3 21 13)(5)(7 10 9)(8 14 11)(12 17 15)(16)(18)(19)(20)