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

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

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

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

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