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

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

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

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

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