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

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

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

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

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