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

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

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

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

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