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

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

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

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

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