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

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

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

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

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