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

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

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

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

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