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

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

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

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

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