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

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

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

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

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