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

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

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

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

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