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

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

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

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

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